Add integration test for change language

Signed-off-by: dab246 <tdvu@linagora.com>

integration_test/robots/language_robot.dart

@@ -0,0 +1,23 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:tmail_ui_user/features/manage_account/presentation/language_and_region/extensions/locale_extension.dart';
+import 'package:tmail_ui_user/main/localizations/app_localizations.dart';
+
+import '../base/core_robot.dart';
+
+class LanguageRobot extends CoreRobot {
+  LanguageRobot(super.$);
+
+  Future<void> openLanguageContextMenu() async {
+    await $(#language_drop_down_button).tap();
+  }
+
+  Future<void> selectLanguage(
+    Locale locale,
+    AppLocalizations appLocalizations,
+  ) async {
+    await $(find.text(
+            '${locale.getLanguageNameByCurrentLocale(appLocalizations)} - ${locale.getSourceLanguageName()}'))
+        .tap();
+  }
+}

integration_test/robots/mailbox_menu_robot.dart

@@ -18,4 +18,8 @@ class MailboxMenuRobot extends CoreRobot {
       .$(find.text(name))
       .tap();
   }
+
+  Future<void> openSetting() async {
+    await $(#user_avatar).tap();
+  }
 }

integration_test/robots/setting_robot.dart

@@ -0,0 +1,11 @@
+import 'package:flutter_test/flutter_test.dart';
+
+import '../base/core_robot.dart';
+
+class SettingRobot extends CoreRobot {
+  SettingRobot(super.$);
+
+  Future<void> openLanguageMenuItem() async {
+    await $(#setting_language_region).tap();
+  }
+}