#10 Fixed gray background in timetable on days outside of given range

lib/view/pages/timetable/timetable.dart

@@ -102,8 +102,8 @@ class _TimetableState extends State<Timetable> {
               view: CalendarView.workWeek,
               dataSource: _buildTableEvents(value),
 
-              maxDate: DateTime.now().add(const Duration(days: 7)),
-              minDate: DateTime.now().subtract(const Duration (days: 14)),
+              maxDate: DateTime.now().add(const Duration(days: 7)).nextWeekday(DateTime.saturday),
+              minDate: DateTime.now().subtract(const Duration (days: 14)).nextWeekday(DateTime.sunday),
 
               controller: controller,