Bugfixes:
- Fixes crashes caused by startForegroundService by limiting startForegroundService only to only be called by the TileService (where it is necessary to be able to start VPN without app running).
- Attempt to further reduce crashes caused by startForegroundService (which is notorious for this issue) by launching initial foreground notification in service onCreate.
- Attempt to limit crashes caused by mlkit (for QR code scanning) initialization by explicitly calling for initialization on app start.