Add app version display and automatic GitHub update checker to Settin…

…gs and Menu Bar (v1.0.3)

fix: RSVP panel disappearing when clicking Books, pause button restart

- Fix RSVP overlay hiding when clicking Apple Books by setting
  hidesOnDeactivate = false on the panel (NSPanel defaults to true)
- Fix pause button triggering full content reload by adding
  play/pause toggle guard in startFocusRead()
- Add smart re-show: panel hidden + content loaded = resume without
  re-scraping
- Bump version to 1.0.2

Release v1.0.1: Fix window corners, EPUB parsing compatibility, page …

…progress UI, and first mouse click response