Switch mobile app to dark theme and fix calendar filtering
- Default to dark theme in mobile app, matching web app style
- Filter native calendar events by location to exclude empty ones
- Add batch edit panel for destinations on web calendar
- Add edit support to AddEventModal
- Update notification trigger input type export
- Add new hook files for departure time, destination station, geocode, theme, walk route, and WienerLinien
- Add navigation types for centralized route definitions
- Update App.tsx to use ref for initialization logic
- Update notification service to use stable exports from expo-notifications
- Remove legacy notifications.ts and rename to expoNotifications.ts
- Add ScrollView to several screens for better layout
- Replace duplicated type definitions with imports from shared navigation types
- Add useTheme to relevant screens
- Remove notification handler duplication in App.tsx
- Introduce `getLeaveStatus` function in `packages/core/src/status-utils.ts` to determine leave-by status based on
journey data
- Mark Phase 1 mobile app tasks as complete in `CHECKLIST.md`
- Add mobile workspace configurations and npm scripts
fegger