Update bookmarks on rename/move operations

### Problem

Renaming a file or folder causes the bookmark to point to a non-existing location

It is annoying to rename a file, then suddenly the shortcut for it needs to be remade

### Proposal

When renaming from Files, once rename is successful,
a quick check if there is a bookmark pointing to the old name
a bookmark name and path update to point to the new name

ditto probably for move operations

...I could do it when Files-Gtk4 lands, but really not much for touching gtk3 code, or risking something that will be skonched away in the porting efforts

### Prior Art (Optional)

_No response_

Start by locating the Files rename and move success handling and the existing bookmarks implementation, then determine whether the work belongs in the GTK3 code or the Files-Gtk4 port. Verify the bookmark’s name and path after a successful rename or move, including the case where no bookmark points to the old location.

Written by the indexing model from the issue text.