diff --git a/assets/config/webpack.config.development.js b/assets/config/webpack.config.development.js
index a1855fcb..a83d09da 100644
--- a/assets/config/webpack.config.development.js
+++ b/assets/config/webpack.config.development.js
@@ -1,446 +1,446 @@
 /**
  * Copyright (C) 2018-2021  The Software Heritage developers
  * See the AUTHORS file at the top-level directory of this distribution
  * License: GNU Affero General Public License version 3, or any later version
  * See top-level LICENSE file for more information
  */
 
 // webpack configuration for compiling static assets in development mode
 
 // import required node modules and webpack plugins
 const chalk = require('chalk');
 const fs = require('fs');
 const path = require('path');
 const webpack = require('webpack');
 const BundleTracker = require('webpack-bundle-tracker');
 const RobotstxtPlugin = require('robotstxt-webpack-plugin');
 const CleanWebpackPlugin = require('clean-webpack-plugin').CleanWebpackPlugin;
 const MiniCssExtractPlugin = require('mini-css-extract-plugin');
 const FixSwhSourceMapsPlugin = require('./webpack-plugins/fix-swh-source-maps-webpack-plugin');
 const CopyWebpackPlugin = require('copy-webpack-plugin');
 const GenerateWebLabelsPlugin = require('./webpack-plugins/generate-weblabels-webpack-plugin');
 const ProgressBarPlugin = require('progress-bar-webpack-plugin');
 const DumpHighlightjsLanguagesDataPlugin = require('./webpack-plugins/dump-highlightjs-languages-data-plugin');
 const ESLintPlugin = require('eslint-webpack-plugin');
 
 // are we running webpack-dev-server ?
 const isDevServer = process.argv.find(v => v.includes('serve')) !== undefined;
 // webpack-dev-server configuration
 const devServerPort = 3000;
 const devServerPublicPath = 'http://localhost:' + devServerPort + '/static/';
 // set publicPath according if we are using webpack-dev-server to serve
 // our assets or not
 const publicPath = isDevServer ? devServerPublicPath : '/static/';
 
 const nodeModules = path.resolve(__dirname, '../../node_modules/');
 
 // collect all bundles we want to produce with webpack
 var bundles = {};
 const bundlesDir = path.join(__dirname, '../src/bundles');
 fs.readdirSync(bundlesDir).forEach(file => {
   bundles[file] = ['bundles/' + file + '/index.js'];
 });
 
 // common loaders for css related assets (css, sass)
 const cssLoaders = [
   MiniCssExtractPlugin.loader,
   {
     loader: 'css-loader',
     options: {
       sourceMap: !isDevServer
     }
   },
   {
     loader: 'postcss-loader',
     options: {
       sourceMap: !isDevServer,
       postcssOptions: {
         plugins: [
           // lint swh-web stylesheets
           ['stylelint', {
             'config': {
               'extends': 'stylelint-config-standard',
               'rules': {
                 'indentation': 4,
                 'font-family-no-missing-generic-family-keyword': null,
                 'no-descending-specificity': null,
                 'selector-class-pattern': null
               },
               'ignoreFiles': ['node_modules/**/*.css',
                               'assets/src/thirdparty/**/*.css']
             }
           }],
           // automatically add vendor prefixes to css rules
           'autoprefixer',
           'postcss-normalize',
           ['postcss-reporter', {
             clearReportedMessages: true
           }]
         ]
       }
     }
   }
 ];
 
 // webpack development configuration
 module.exports = {
   // use caching to speedup incremental builds
   cache: {
     type: 'filesystem'
   },
   // set mode to development
   mode: 'development',
   // workaround for https://github.com/webpack/webpack-dev-server/issues/2758
   target: process.env.NODE_ENV === 'development' ? 'web' : 'browserslist',
   // use eval source maps when using webpack-dev-server for quick debugging,
   // otherwise generate source map files (more expensive)
   devtool: isDevServer ? 'eval' : 'source-map',
   // webpack-dev-server configuration
   devServer: {
     client: {
       logging: 'warn',
       overlay: {
         warnings: true,
         errors: true
       },
       progress: true
     },
     devMiddleware: {
       publicPath: devServerPublicPath,
       stats: 'errors-only'
     },
     host: '0.0.0.0',
     port: devServerPort,
     // enable to serve static assets not managed by webpack
     static: {
       directory: path.resolve('./'),
       watch: {
-        ignored: /node_modules/
+        ignored: /(node_modules|.tox|.mypy)/
       }
     },
     // we do not use hot reloading here (as a framework like React needs to be used in order to fully benefit from that feature)
     // and prefer to fully reload the frontend application in the browser instead
     hot: false,
     historyApiFallback: true,
     headers: {
       'Access-Control-Allow-Origin': '*'
     }
   },
   // set entries to the bundles we want to produce
   entry: bundles,
   // assets output configuration
   output: {
     path: path.resolve('./static/'),
     filename: 'js/[name].[contenthash].js',
     chunkFilename: 'js/[name].[contenthash].js',
     publicPath: publicPath,
     // each bundle will be compiled as a umd module with its own namespace
     // in order to easily use them in django templates
     library: ['swh', '[name]'],
     libraryTarget: 'umd'
   },
   // module resolving configuration
   resolve: {
     // alias pdfjs to its minified version
     alias: {
       'pdfjs-dist': 'pdfjs-dist/build/pdf.min.js'
     },
     // configure base paths for resolving modules with webpack
     modules: [
       'node_modules',
       path.resolve(__dirname, '../src')
     ]
   },
   stats: 'errors-warnings',
   // module import configuration
   module: {
     rules: [
       {
       // Use babel-loader in order to use es6 syntax in js files
       // but also advanced js features like async/await syntax.
       // All code get transpiled to es5 in order to be executed
       // in a large majority of browsers.
         test: /\.js$/,
         exclude: /node_modules/,
         use: [
           {
             loader: 'babel-loader',
             options: {
               presets: [
                 // use env babel presets to benefit from es6 syntax
                 ['@babel/preset-env', {
                   // Do not transform es6 module syntax to another module type
                   // in order to benefit from dead code elimination (aka tree shaking)
                   // when running webpack in production mode
                   'loose': true,
                   'modules': false
                 }]
               ],
               plugins: [
               // use babel transform-runtime plugin in order to use aync/await syntax
                 ['@babel/plugin-transform-runtime', {
                   'regenerator': true
                 }],
                 // use other babel plugins to benefit from advanced js features (es2017)
                 '@babel/plugin-syntax-dynamic-import'
               ],
               env: {
                 test: {
                   plugins: ['istanbul']
                 }
               }
             }
           }]
       },
       {
         test: /\.ejs$/,
         use: [{
           loader: 'ejs-compiled-loader',
           options: {
             htmlmin: true,
             htmlminOptions: {
               removeComments: true
             }
           }
         }]
       },
       // expose jquery to the global context as $ and jQuery when importing it
       {
         test: require.resolve('jquery'),
         use: [{
           loader: 'expose-loader',
           options: {
             exposes: [
               {
                 globalName: '$',
                 override: true
               },
               {
                 globalName: 'jQuery',
                 override: true
               }
             ]
           }
         }]
       },
       // expose highlightjs to the global context as hljs when importing it
       {
         test: require.resolve('highlight.js'),
         use: [{
           loader: 'expose-loader',
           options: {
             exposes: {
               globalName: 'hljs',
               override: true
             }
           }
         }]
       },
       // css import configuration:
       //  - first process it with postcss
       //  - then extract it to a dedicated file associated to each bundle
       {
         test: /\.css$/,
         use: cssLoaders
       },
       // sass import configuration:
       //  - generate css with sass-loader
       //  - process it with postcss
       //  - then extract it to a dedicated file associated to each bundle
       {
         test: /\.scss$/,
         use: cssLoaders.concat([
           {
             loader: 'sass-loader',
             options: {
               sourceMap: !isDevServer
             }
           }
         ])
       },
       // web fonts import configuration
       {
         test: /\.(woff|woff2)(\?v=\d+\.\d+\.\d+)?$/,
         type: 'asset/resource',
         generator: {
           filename: 'fonts/[name][ext][query]'
         }
       }, {
         test: /\.ttf(\?v=\d+\.\d+\.\d+)?$/,
         type: 'asset/resource',
         generator: {
           filename: 'fonts/[name][ext][query]'
         }
       }, {
         test: /\.eot(\?v=\d+\.\d+\.\d+)?$/,
         type: 'asset/resource',
         generator: {
           filename: 'fonts/[name][ext][query]'
         }
       }, {
         test: /\.svg(\?v=\d+\.\d+\.\d+)?$/,
         type: 'asset/resource',
         generator: {
           filename: 'fonts/[name][ext][query]'
         }
       }, {
         test: /\.otf(\?v=\d+\.\d+\.\d+)?$/,
         type: 'asset/resource',
         generator: {
           filename: 'fonts/[name][ext][query]'
         }
       }, {
         test: /\.png$/,
         type: 'asset/resource',
         generator: {
           filename: 'img/thirdParty/[name][ext][query]'
         }
       },
       {
         test: /\.ya?ml$/,
         type: 'json',
         use: 'yaml-loader'
       }
     ],
     // tell webpack to not parse already minified files to speedup build process
     noParse: [path.resolve(nodeModules, 'pdfjs-dist/build/pdf.min.js'),
               path.resolve(nodeModules, 'mathjax/es5/tex-mml-chtml.js')]
   },
   // webpack plugins
   plugins: [
     // cleanup previously generated assets
     new CleanWebpackPlugin({
       cleanOnceBeforeBuildPatterns: ['**/*', '!xml', '!xml/*', '!img', '!img/*',
                                      '!img/logos', '!img/logos/*', '!img/icons',
                                      '!img/icons/*', '!json', '!json/*']
     }),
     // needed in order to use django_webpack_loader
     new BundleTracker({
       filename: './static/webpack-stats.json'
     }),
     // for generating the robots.txt file
     new RobotstxtPlugin({
       policy: [{
         userAgent: '*',
         disallow: '/api/'
       }]
     }),
     // for extracting all stylesheets in separate css files
     new MiniCssExtractPlugin({
       filename: 'css/[name].[contenthash].css',
       chunkFilename: 'css/[name].[contenthash].css'
     }),
     // fix generated asset sourcemaps to workaround a Firefox issue
     new FixSwhSourceMapsPlugin(),
     // define some global variables accessible from js code
     new webpack.DefinePlugin({
       __STATIC__: JSON.stringify(publicPath)
     }),
     // needed in order to use bootstrap 4.x
     new webpack.ProvidePlugin({
       Popper: ['popper.js', 'default'],
       Alert: 'exports-loader?Alert!bootstrap/js/dist/alert',
       Button: 'exports-loader?Button!bootstrap/js/dist/button',
       Carousel: 'exports-loader?Carousel!bootstrap/js/dist/carousel',
       Collapse: 'exports-loader?Collapse!bootstrap/js/dist/collapse',
       Dropdown: 'exports-loader?Dropdown!bootstrap/js/dist/dropdown',
       Modal: 'exports-loader?Modal!bootstrap/js/dist/modal',
       Popover: 'exports-loader?Popover!bootstrap/js/dist/popover',
       Scrollspy: 'exports-loader?Scrollspy!bootstrap/js/dist/scrollspy',
       Tab: 'exports-loader?Tab!bootstrap/js/dist/tab',
       Tooltip: 'exports-loader?Tooltip!bootstrap/js/dist/tooltip',
       Util: 'exports-loader?Util!bootstrap/js/dist/util'
     }),
     // needed in order to use pdf.js
     new webpack.IgnorePlugin({resourceRegExp: /^\.\/pdf.worker.js$/}),
     new CopyWebpackPlugin({
       patterns: [
         {
           from: path.resolve(nodeModules, 'pdfjs-dist/build/pdf.worker.min.js'),
           to: path.resolve(__dirname, '../../static/js/')
         },
         {
           from: path.resolve(nodeModules, 'mathjax/es5/output/chtml/fonts/woff-v2/**'),
           to: path.resolve(__dirname, '../../static/fonts/[name][ext]')
         }
       ]
     }),
     new GenerateWebLabelsPlugin({
       outputType: 'json',
       exclude: ['mini-css-extract-plugin',
                 'bootstrap-loader'],
       srcReplace: {
         './node_modules/pdfjs-dist/build/pdf.min.js':
         './node_modules/pdfjs-dist/build/pdf.js',
         './node_modules/admin-lte/dist/js/adminlte.min.js':
         './node_modules/admin-lte/dist/js/adminlte.js'
       },
       licenseOverride: {
         './assets/src/thirdparty/jquery.tabSlideOut/jquery.tabSlideOut.js': {
           'spdxLicenseExpression': 'GPL-3.0',
           'licenseFilePath': './assets/src/thirdparty/jquery.tabSlideOut/LICENSE'
         }
       },
       additionalScripts: Object.assign(
         {
           'js/pdf.worker.min.js': [
             {
               'id': 'pdfjs-dist/build/pdf.worker.js',
               'path': './node_modules/pdfjs-dist/build/pdf.worker.js',
               'spdxLicenseExpression': 'Apache-2.0',
               'licenseFilePath': './node_modules/pdfjs-dist/LICENSE'
 
             }
           ],
           '/jsreverse/': [
             {
               'id': 'jsreverse',
               'path': '/jsreverse/',
               'spdxLicenseExpression': 'AGPL-3.0-or-later',
               'licenseFilePath': './LICENSE'
             }
           ],
           'https://piwik.inria.fr/matomo.js': [
             {
               'id': 'matomo.js',
               'path': 'https://github.com/matomo-org/matomo/blob/master/js/piwik.js',
               'spdxLicenseExpression': 'BSD-3-Clause',
               'licenseFilePath': 'https://github.com/matomo-org/matomo/blob/master/js/LICENSE.txt'
             }
           ]
         }
       )
     }),
     new ProgressBarPlugin({
       format: chalk.cyan.bold('webpack build of swh-web assets') + ' [:bar] ' + chalk.green.bold(':percent') + ' (:elapsed seconds)',
       width: 50
     }),
     new DumpHighlightjsLanguagesDataPlugin(),
     // Process all js files with eslint for consistent code style
     // and avoid bad js development practices.
     new ESLintPlugin({
       overrideConfigFile: path.join(__dirname, '.eslintrc'),
       ignorePath: path.join(__dirname, '.eslintignore'),
       cache: true,
       emitWarning: true
     })
   ],
   // webpack optimizations
   optimization: {
     // ensure the vendors bundle gets emitted in a single chunk
     splitChunks: {
       cacheGroups: {
         defaultVendors: {
           test: 'vendors',
           chunks: 'all',
           name: 'vendors',
           enforce: true
         }
       }
     }
   },
   // disable webpack warnings about bundle sizes
   performance: {
     hints: false
   }
 };