factor:布局颜色重构

lib/widgets/calendar_widget.dart

@@ -61,6 +61,10 @@ Widget buildCalendar({
   return SfCalendar(
     view: CalendarView.week,
     controller: controller,
+    backgroundColor: Theme.of(context).colorScheme.surfaceContainer,
+    headerStyle: CalendarHeaderStyle(
+      backgroundColor: Theme.of(context).colorScheme.surfaceContainer,
+    ),
     dataSource: dataSource,
     firstDayOfWeek: 1,
     showDatePickerButton: true,
@@ -75,8 +79,8 @@ Widget buildCalendar({
     scheduleViewSettings: ScheduleViewSettings(
       monthHeaderSettings: MonthHeaderSettings(
         backgroundColor: Theme.of(context).colorScheme.primary,
-        height: 85
-      )
+        height: 85,
+      ),
     ),
     // 时间区域设置
     timeSlotViewSettings: TimeSlotViewSettings(