Fixes:
 - In certain situations on some android devices, the app crashed
   on start while reading credentials. Based on the information given
   it might interfer with the automatic backup to Google Drive.
   Prevent saving keystore.

Release version 3.10

Improves:
 - Android app icon is now shown without white circle (improves splash as well)
 - Teacher settings contain a quick filter now

Fixes:
 - For each new push notification, log messages got one logger more, flooding the system log

Improves:
 - Android app icon is now shown without white circle

Fixes:
 - Log messages for push notifications got increased with each trigger
   Removed the duplicate configuration.
 - Push notification processing improved to ensure, things are not
   running in parallel.

Release version 3.0.9

Bugfix:
 - Scanner for login card does not always proper work
 - Upgrade unified push libraries (FCM fallback)
 - Fix black screen after login

Fix blackscreen during login

See merge request !2

Release version 3.0.7

Features:
 - Sort classes
 - Refresh UI on resume of the app

Release version 3.0.6

Fixes:
 - Login card for teachers

Release version 3.0.5

Features:
 - New restriction to switch to teacher mode
 - Tooltips in settings menu