- Added WeekGrid composable to visualize weekly timetable with lessons.
- Introduced LessonBlock for individual lesson representation.
- Created theme file for consistent color schemes across the app.
- Developed NextLessonWidget and TodayWidget for home screen integration.
- Implemented Upcoming data class to manage upcoming lessons.
- Added WidgetStyle for dynamic theming in widgets.
- Created SyncWorker for periodic timetable updates and widget refresh.
