show classname instead of teacher name in teacher timetable view

lib/widget_data/widget_publisher.dart

@@ -22,14 +22,18 @@ class WidgetPublisher {
   static Future<void> publishFromBlocState(
     TimetableState state, {
     Settings? settings,
+    bool isTeacher = false,
   }) async {
     try {
       final connectDouble =
           settings?.timetableSettings.connectDoubleLessons ?? true;
       // Mirror into widget storage so the background isolate sees the same
-      // value the user just toggled.
-      await WidgetSync.setConnectDoubleLessons(connectDouble);
-      await WidgetSync.setThemeMode(_themeName(settings?.appTheme));
+      // values the user just toggled — concurrently, they are independent.
+      await Future.wait([
+        WidgetSync.setConnectDoubleLessons(connectDouble),
+        WidgetSync.setThemeMode(_themeName(settings?.appTheme)),
+        WidgetSync.setIsTeacher(isTeacher),
+      ]);
       final lessons = state.getAllKnownLessons();
       final now = widgetNow();
       final dayData = WidgetDataMapper.buildDayData(
@@ -41,6 +45,7 @@ class WidgetPublisher {
         timegrid: state.timegrid,
         customEvents: state.customEvents,
         connectDoubleLessons: connectDouble,
+        showClassInsteadOfTeacher: isTeacher,
       );
       final weekData = WidgetDataMapper.buildWeekData(
         now: now,
@@ -51,6 +56,7 @@ class WidgetPublisher {
         timegrid: state.timegrid,
         customEvents: state.customEvents,
         connectDoubleLessons: connectDouble,
+        showClassInsteadOfTeacher: isTeacher,
       );
       await WidgetSync.writeDayData(dayData);
       await WidgetSync.writeWeekData(weekData);