Restored full timetable implementation using SFCalendar

lib/main.dart

@@ -8,6 +8,7 @@ import 'package:marianum_mobile/screen/login/login.dart';
 import 'package:marianum_mobile/widget/errorView.dart';
 import 'package:provider/provider.dart';
 import 'package:shared_preferences/shared_preferences.dart';
+import 'package:flutter_localizations/flutter_localizations.dart';
 
 import 'app.dart';
 import 'data/chatList/chatListProps.dart';
@@ -71,6 +72,16 @@ class _MainState extends State<Main> {
 
     return MaterialApp(
       debugShowCheckedModeBanner: false,
+      localizationsDelegates: const [
+        ...GlobalMaterialLocalizations.delegates,
+        GlobalWidgetsLocalizations.delegate,
+      ],
+      supportedLocales: const [
+        Locale('de'),
+        Locale('en'),
+      ],
+      locale: const Locale('de'),
+
 
       title: 'Marianum Fulda',
       theme: ThemeData(
@@ -79,7 +90,7 @@ class _MainState extends State<Main> {
         colorScheme: const ColorScheme(
           brightness: Brightness.light,
           surface: Colors.white,
-          onSurface: Colors.white,
+          onSurface: Colors.black,
           onSecondary: Colors.white,
           onPrimary: Colors.white,
           onError: marianumRed,
@@ -91,7 +102,7 @@ class _MainState extends State<Main> {
         ),
         hintColor: marianumRed,
         inputDecorationTheme: const InputDecorationTheme(
-           border: UnderlineInputBorder(borderSide: BorderSide(color: marianumRed)),
+          border: UnderlineInputBorder(borderSide: BorderSide(color: marianumRed)),
         ),
         appBarTheme: const AppBarTheme(
           backgroundColor: marianumRed,