Fixes some possible NPE.

permission fixes for new Android version

Rollback of the ssh lib to hopefully fix a regression (2.13.1)

upgrade to gradle 8.1.4

New places, new places colors

* Refactoring of the Cashbox part. Fixes session handling.

* Adds "Holz" as location.

Reduces minSdkVersion to 26 (Android 8.0).

* Fixes cashbox crash

updates cashbox

2.9.9

* Fixes Trash calendar for Android 12