Fix locale reset when previewing files

Author: CodeDoctorDE

app/lib/embed/embedding.dart

@@ -15,7 +15,7 @@ class Embedding {
   Embedding({
     this.save = true,
     this.editable = true,
-    this.language = '',
+    this.language = 'user',
     this.theme = 'user',
     bool internal = false,
     this.onExit,

app/test/views/project_page_lifecycle_test.dart

@@ -3,6 +3,7 @@ import 'package:butterfly/api/open.dart';
 import 'package:butterfly/bloc/document_bloc.dart';
 import 'package:butterfly/cubits/current_index.dart';
 import 'package:butterfly/cubits/settings.dart';
+import 'package:butterfly/embed/embedding.dart';
 import 'package:butterfly/models/defaults.dart';
 import 'package:butterfly/src/generated/i18n/app_localizations.dart';
 import 'package:butterfly/views/main.dart';
@@ -21,6 +22,10 @@ import 'package:shared_preferences/shared_preferences.dart';
 import '../helpers/mocks.dart';
 
 void main() {
+  test('internal embedding preserves the user language', () {
+    expect(Embedding(internal: true).language, 'user');
+  });
+
   setUpAll(() {
     TestWidgetsFlutterBinding.ensureInitialized();
     SharedPreferences.setMockInitialValues({});

metadata/en-US/changelogs/189.txt metadata/en-US/changelogs/188.txtmetadata/en-US/changelogs/189.txt renamed to metadata/en-US/changelogs/188.txt

@@ -13,5 +13,6 @@ Cherry picks:
 * Respect hidden file extensions in Recent files
 * Persist the thumbnail setting
 * Correct the texture height label
+* Fix file previews resetting the language to the system locale
 
-Read more here: https://linwood.dev/butterfly/2.5.4
+Read more here: https://linwood.dev/butterfly/2.5.4