Persisted file order options

lib/storage/base/settingsProvider.dart

@@ -3,6 +3,7 @@ import 'dart:developer';
 import 'package:flutter/material.dart';
 import 'package:shared_preferences/shared_preferences.dart';
 
+import '../../view/pages/files/files.dart';
 import '../file/fileSettings.dart';
 import '../gradeAverages/gradeAveragesSettings.dart';
 import '../holidays/holidaysSettings.dart';
@@ -92,6 +93,8 @@ class SettingsProvider extends ChangeNotifier {
       ),
       fileSettings: FileSettings(
         sortFoldersToTop: true,
+        ascending: true,
+        sortBy: SortOption.name
       ),
       holidaysSettings: HolidaysSettings(
         dismissedDisclaimer: false,

lib/storage/file/fileSettings.dart

@@ -1,12 +1,17 @@
 import 'package:json_annotation/json_annotation.dart';
 
+import '../../view/pages/files/files.dart';
+
 part 'fileSettings.g.dart';
 
 @JsonSerializable()
 class FileSettings {
   bool sortFoldersToTop;
 
-  FileSettings({required this.sortFoldersToTop});
+  bool ascending;
+  SortOption sortBy;
+
+  FileSettings({required this.sortFoldersToTop, required this.ascending, required this.sortBy});
 
   factory FileSettings.fromJson(Map<String, dynamic> json) => _$FileSettingsFromJson(json);
   Map<String, dynamic> toJson() => _$FileSettingsToJson(this);

lib/storage/file/fileSettings.g.dart

@@ -8,9 +8,19 @@ part of 'fileSettings.dart';
 
 FileSettings _$FileSettingsFromJson(Map<String, dynamic> json) => FileSettings(
       sortFoldersToTop: json['sortFoldersToTop'] as bool,
+      ascending: json['ascending'] as bool,
+      sortBy: $enumDecode(_$SortOptionEnumMap, json['sortBy']),
     );
 
 Map<String, dynamic> _$FileSettingsToJson(FileSettings instance) =>
     <String, dynamic>{
       'sortFoldersToTop': instance.sortFoldersToTop,
+      'ascending': instance.ascending,
+      'sortBy': _$SortOptionEnumMap[instance.sortBy]!,
     };
+
+const _$SortOptionEnumMap = {
+  SortOption.name: 'name',
+  SortOption.date: 'date',
+  SortOption.size: 'size',
+};