Pachli 2.12.0

New features:

- Improve display of admin notifications
- Client-side encrypted cloud backups
- Export/import preferences

Fixes:

- Show translated posts / media descriptions when viewing threads
- Multiple notification fixes
- Allow filtering of mentions and severed relationships on older devices
- Prevent "Record not found" when opening as a different account

Translations:

- Finnish, Irish, Latvian, Polish, Slovak, Spanish
