timetable performance optimization

lib/view/pages/timetable/widgets/calendar/outside_chips.dart

@@ -1,16 +1,14 @@
 part of '../custom_workweek_calendar.dart';
 
 class _OutsideHoursStrip extends StatelessWidget {
-  final DateTime weekStart;
-  final List<Appointment> appointments;
+  final List<List<Appointment>> outside;
   final double rulerWidth;
   final void Function(Appointment) onAppointmentTap;
   final bool Function(Appointment) isCrossedOut;
 
   const _OutsideHoursStrip({
     super.key,
-    required this.weekStart,
-    required this.appointments,
+    required this.outside,
     required this.rulerWidth,
     required this.onAppointmentTap,
     required this.isCrossedOut,
@@ -18,10 +16,6 @@ class _OutsideHoursStrip extends StatelessWidget {
 
   @override
   Widget build(BuildContext context) {
-    final outside = partitionAppointmentsForWeek(
-      appointments,
-      weekStart,
-    ).outside;
     if (outside.every((day) => day.isEmpty)) return const SizedBox.shrink();
 
     final theme = Theme.of(context);