Added initial ask for gradesystem in gradeaverage

lib/storage/base/settingsProvider.dart

@@ -27,6 +27,8 @@ class SettingsProvider extends ChangeNotifier {
   void reset() async {
     _storage = await SharedPreferences.getInstance();
     _storage.remove(_fieldName);
+    _settings = DefaultSettings.get();
+    await update();
 
     notifyListeners();
   }
@@ -51,7 +53,7 @@ class SettingsProvider extends ChangeNotifier {
     notifyListeners();
   }
 
-  void update() async {
+  Future<void> update() async {
     await _storage.setString(_fieldName, jsonEncode(_settings.toJson()));
   }
 

lib/storage/gradeAverages/gradeAveragesSettings.dart

@@ -6,9 +6,10 @@ part 'gradeAveragesSettings.g.dart';
 @JsonSerializable()
 class GradeAveragesSettings {
   bool useGradeSystem;
+  bool askedForPreferredGradeSystem;
   List<int> inputs;
 
-  GradeAveragesSettings({required this.useGradeSystem, required this.inputs});
+  GradeAveragesSettings({required this.useGradeSystem, required this.askedForPreferredGradeSystem, required this.inputs});
 
   factory GradeAveragesSettings.fromJson(Map<String, dynamic> json) => _$GradeAveragesSettingsFromJson(json);
   Map<String, dynamic> toJson() => _$GradeAveragesSettingsToJson(this);

lib/storage/gradeAverages/gradeAveragesSettings.g.dart

@@ -10,6 +10,8 @@ GradeAveragesSettings _$GradeAveragesSettingsFromJson(
         Map<String, dynamic> json) =>
     GradeAveragesSettings(
       useGradeSystem: json['useGradeSystem'] as bool,
+      askedForPreferredGradeSystem:
+          json['askedForPreferredGradeSystem'] as bool,
       inputs: (json['inputs'] as List<dynamic>).map((e) => e as int).toList(),
     );
 
@@ -17,5 +19,6 @@ Map<String, dynamic> _$GradeAveragesSettingsToJson(
         GradeAveragesSettings instance) =>
     <String, dynamic>{
       'useGradeSystem': instance.useGradeSystem,
+      'askedForPreferredGradeSystem': instance.askedForPreferredGradeSystem,
       'inputs': instance.inputs,
     };