Inform users that Auto Uploads are not working after upgrading to version 3.30.6 or later

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**Is your feature request related to a problem? Please describe.**
After [removal of the "all files access" permission](https://github.com/nextcloud/android/issues/14135) already configured Auto uploads fail/stop working silently.
This is a big issue since some users rely on Nextclouds Auto upload feature for backups. After upgrading the app to version 3.30.6 or later Auto uploads and therefore backups stopped working without an error. Only the Google Play build of the app is affected.
Further, automatic app updates may lead to this issue without any user interaction at all.

**Describe the solution you'd like**
Display a push notification right after app upgrade, if the user has any Auto upload pairs enabled.

- Inform the user that
- Auto uploads of files other than photos and videos are not working and won't be working with the Google Play Store build
- the "Photos and videos permission" needs to be granted so that the auto upload of those files works again (but no other file types)
- the location permission is required if the user wants to keep location metadata in their uploaded photos
- Actively ask the user to grant the "Photos and videos permission" when they open the push notification
- Actively ask the user to grant the "Location permission"

From my perspective this issue is so critical that it warrants a permanent notification until the users acknowledges that they understood the change, either by granting the permissions or by disabling auto uploads.

**Describe alternatives you've considered**
Find other ways to reach ALL app users with auto uploads enabled that doesn't require them to manually open the app.

Do nothing and let users discover on their own that their backups aren't working anymore.
Only ask for new permissions when the user opens the Auto upload settings manually (current behavior after app upgrade)

**Additional context**
Users are surprised and upset that auto uploads have stopped working. Several issues and comments on this topic:
- https://github.com/nextcloud/android/issues/14199
- https://github.com/nextcloud/android/issues/14330
- https://github.com/nextcloud/android/issues/14331
- https://github.com/nextcloud/android/issues/14333
- https://github.com/nextcloud/android/issues/14334#issuecomment-2577859260