Pausing automatic backups, and reminding that they are paused

[t-m-w]

There may be times when a user wishes to keep automatic backups turned off for various reasons, such as travel.

In my case, which is admittedly out of the norm, I am testing Seedvault with a USB flash drive, and I want to be able to unplug and plug in the drive and be sure that Seedvault is not going to perform a backup at any time. This is because I want to restore the data in secondary users and want to ensure no clobbering happens.

Right now, there's no way to turn off app backup without requiring a reinitialization of backup data after turning it on again.

Ideally for me, there would be a feature to pause automatic backups that also makes it obvious that they are paused and nudges the user to turn them back on, e.g. a banner in the Seedvault settings screen in addition to a notification in a channel that the user can turn off if they really don't want to be bothered about it.