Rudder

When we detect a modification in the policy template library, we don't have to start using the new version immediatly.
We have to pop a notification for the user to explain that a new version is available and can be accepted in the Policy Template Library management screen.

In policy template library management screen, show an action button that allows to switch to the new revision. Ideally, also show all commit messages since currently used revision, and all modified PT, highlithing structuraly modified PT (see #1443) that will be desactivated when the revision is accepted.

On acceptation, update User Policy Templates with the new acceptation datetime and revision to use (see #1444), and desactivate structurally modified PT (see #1443).

After acceptation, display success + the list of desactivated PT and PI that the user should manage (that information should stay available until everything is processed).