Bottom bar empty on "basic" flavor

• Device OS and version: Android 11
• Device model/manufacturer: Google Pixel 4 (Emulator)
• F-Droid version (in the About screen): Commit 9b8b40e2
• F-Droid privileged extension version (if installed)🚫

What did you do? (clear steps if possible)

Run from git

What did you expect to see?

Navigation entries at the bottom

What did you see instead?

Empty and non-functioning bottom bar