Added option to open FileViewer always with system dialog, enabled by default on iOS

lib/storage/fileView/fileViewSettings.g.dart

@@ -0,0 +1,17 @@
+// GENERATED CODE - DO NOT MODIFY BY HAND
+
+part of 'fileViewSettings.dart';
+
+// **************************************************************************
+// JsonSerializableGenerator
+// **************************************************************************
+
+FileViewSettings _$FileViewSettingsFromJson(Map<String, dynamic> json) =>
+    FileViewSettings(
+      alwaysOpenExternally: json['alwaysOpenExternally'] as bool,
+    );
+
+Map<String, dynamic> _$FileViewSettingsToJson(FileViewSettings instance) =>
+    <String, dynamic>{
+      'alwaysOpenExternally': instance.alwaysOpenExternally,
+    };