This introduces a new endpoint to refresh the status of the save code now requests. This
endpoint will be called periodically. That concern is out of scope of the webapp.
The listing ui now feels more immediate as implementation wise, it no longer writes when
actually listing rows.
This slightly improves the code by typing it a bit more. A new SaveOriginRequestInfo got
adaded to represent the save origin request to display view side. This matches what
other views manipulates.
Related to T3280
Depends on D5579