When the update window is on front, it becomes invisible if phone goes into sleep and out of sleep

[Porkepix]

When the database is updating and having the update popup on front, if the phone goes to sleep (whether it is manually or by inactivity) and out of it, the popup disappears.
The updated is actually continuing, but the user have no ways to know it: there used to be a notification in the past, but that's not the case anymore.

Th popup shouldn't disappear (and notification was probably useful on that matter, dunno if it disappeared by choice or if it's a bug).

[AEFeinstein]

The popup shouldn't be disappearing, and that's not intentional. You can read more about why updates aren't notifications anymore on #622.