Added option to show folders always on top in files

lib/storage/file/fileSettings.dart

@@ -0,0 +1,13 @@
+import 'package:json_annotation/json_annotation.dart';
+
+part 'fileSettings.g.dart';
+
+@JsonSerializable()
+class FileSettings {
+  bool sortFoldersToTop;
+
+  FileSettings({required this.sortFoldersToTop});
+
+  factory FileSettings.fromJson(Map<String, dynamic> json) => _$FileSettingsFromJson(json);
+  Map<String, dynamic> toJson() => _$FileSettingsToJson(this);
+}

lib/storage/file/fileSettings.g.dart

@@ -0,0 +1,16 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'fileSettings.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+FileSettings _$FileSettingsFromJson(Map<String, dynamic> json) => FileSettings(
+      sortFoldersToTop: json['sortFoldersToTop'] as bool,
+    );
+
+Map<String, dynamic> _$FileSettingsToJson(FileSettings instance) =>
+    <String, dynamic>{
+      'sortFoldersToTop': instance.sortFoldersToTop,
+    };