Always save error and display the fetch status in the menu.

This MR :

• always saves the fetch status in the DB, including following manual action (previously, the fetch status was only save on automatic poll)
• displays the fetch status in the menu of the client

This looks like this :

Accesses without errors are unchanged.

Should we display the status on disabled accesses ?

Next step will be to add a caption in the access list providing an explanation for the problem, and what the use should do. I didn't implement it yet, but it is a few lines of code so I can add it to the MR, as you prefer :). However, this requires small design anaysis:

• how should we show this ? I guess with a red-ish background.
• where to show it ? I guess below the access title
• how large should be the red-ish background ? Should it be on the full access item (including the accounts ? Or only the caption with the access name and the controls for the access.