Back gesture has no effect

### Version

v3.3.4

### Source

F-Droid

### Vault encryption

No

### Device

Pixel 6a

### Android version

Android 15

### ROM

GrapheneOS 2025060200

### Steps to reproduce

1. Clear storage of Aegis
2. Open Aegis
3. Use back gesture

### What do you expect to happen?

Return to home screen.

### What happens instead?

Nothing.

### Log

_No response_