Fix ServerDetailsCubit exception

lib/config/bloc_config.dart

@@ -32,6 +32,7 @@ class BlocAndProviderConfig extends StatelessWidget {
     final apiVolumesCubit = ApiProviderVolumeCubit(serverInstallationCubit);
     final apiServerVolumesCubit = ApiServerVolumeCubit(serverInstallationCubit);
     final serverJobsCubit = ServerJobsCubit(serverInstallationCubit);
+    final serverDetailsCubit = ServerDetailsCubit(serverInstallationCubit);
 
     return MultiProvider(
       providers: [
@@ -78,6 +79,9 @@ class BlocAndProviderConfig extends StatelessWidget {
         BlocProvider(
           create: (final _) => serverJobsCubit..load(),
         ),
+        BlocProvider(
+          create: (final _) => serverDetailsCubit..load(),
+        ),
         BlocProvider(
           create: (final _) => JobsCubit(
             usersCubit: usersCubit,

lib/logic/cubit/server_detailed_info/server_detailed_info_cubit.dart

@@ -1,6 +1,5 @@
-import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:equatable/equatable.dart';
 import 'package:selfprivacy/config/get_it_config.dart';
+import 'package:selfprivacy/logic/cubit/app_config_dependent/authentication_dependend_cubit.dart';
 import 'package:selfprivacy/logic/cubit/server_detailed_info/server_detailed_info_repository.dart';
 import 'package:selfprivacy/logic/models/auto_upgrade_settings.dart';
 import 'package:selfprivacy/logic/models/json/hetzner_server_info.dart';
@@ -8,8 +7,10 @@ import 'package:selfprivacy/logic/models/timezone_settings.dart';
 
 part 'server_detailed_info_state.dart';
 
-class ServerDetailsCubit extends Cubit<ServerDetailsState> {
+class ServerDetailsCubit
-  ServerDetailsCubit() : super(ServerDetailsInitial());
+    extends ServerInstallationDependendCubit<ServerDetailsState> {
+  ServerDetailsCubit(final ServerInstallationCubit serverInstallationCubit)
+      : super(serverInstallationCubit, ServerDetailsInitial());
 
   ServerDetailsRepository repository = ServerDetailsRepository();
 
@@ -34,4 +35,29 @@ class ServerDetailsCubit extends Cubit<ServerDetailsState> {
       print('Tried to emit server info state when cubit is closed');
     }
   }
+
+  Future<void> setTimezone(
+    final String timezone,
+  ) async {
+    final ServerDetailsRepositoryDto data = await repository.load();
+    await repository.setTimezone(timezone);
+    emit(
+      Loaded(
+        serverInfo: data.hetznerServerInfo,
+        autoUpgradeSettings: data.autoUpgradeSettings,
+        serverTimezone: TimeZoneSettings.fromString(timezone),
+        checkTime: DateTime.now(),
+      ),
+    );
+  }
+
+  @override
+  void clear() {
+    emit(ServerDetailsNotReady());
+  }
+
+  @override
+  void load() async {
+    check();
+  }
 }

lib/logic/cubit/server_detailed_info/server_detailed_info_state.dart

@@ -1,6 +1,6 @@
 part of 'server_detailed_info_cubit.dart';
 
-abstract class ServerDetailsState extends Equatable {
+abstract class ServerDetailsState extends ServerInstallationDependendState {
   const ServerDetailsState();
 
   @override

lib/ui/pages/server_details/server_details_screen.dart

@@ -76,7 +76,7 @@ class _ServerDetailsScreenState extends State<ServerDetailsScreen>
     }
 
     return BlocProvider(
-      create: (final context) => ServerDetailsCubit()..check(),
+      create: (final context) => context.read<ServerDetailsCubit>()..check(),
       child: BrandHeroScreen(
         heroIcon: BrandIcons.server,
         heroTitle: 'providers.server.card_title'.tr(),