- Move ImmersiveModeToggle component from Calendar to shared-ui package
- Add immersiveModeEnabled setting to Contacts and Todo settings stores
- Update all three app layouts with F-key shortcut and conditional UI rendering
- Consistent glass-pill styling on hover for toggle button
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
