README: Add more status badges
Remove remnant of extension actions
Cleanups
WOKRING: Trying to fix this migration

I am not sure why it fails
Cleanup: Removed unused imports
Cleanup: Remove unused export code
Cleanup: Use reverse instead of hardcoded URLs
Some previous cleanups

Basically to reduce code length, improve readability and ease further
modifications.
Offline translation
Offline signals
Cleanup
Offline upload handling
Offline: Disable if not present in INSTALLLED_APPS
UNDO