Fixes:
  - Add Help item to Synced Documents overflow menu (046e8af36)
  - Fix EPUB startup crash when a fragment file is missing (483443c97)
  - Delete internal EPUB database on epub re-install (59135b770)

AndBible 5.1 stable release!

Quick tour to what's new: https://youtu.be/EKnyBIti9Fk

Highlights since 5.0:
- Optional AI assistant (Gemini, Claude, OpenRouter, ...)
- Reading & memorization progress tracking
- My Documents: editable, syncable pages
- 3-level text display settings inheritance
- Many other small features and bug fixes

See https://andbible.org
Support: https://shop.andbible.org/
