TF-3609 Add integration test for case copy email address to Clipboard in EmailView

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

integration_test/robots/email_address_dialog_robot.dart

@@ -1,5 +1,6 @@
 
 import 'package:flutter_test/flutter_test.dart';
+import 'package:tmail_ui_user/main/localizations/app_localizations.dart';
 
 import '../base/core_robot.dart';
 
@@ -9,4 +10,8 @@ class EmailAddressDialogRobot extends CoreRobot {
   Future<void> tapCloseDialogButton() async {
     await $(#email_address_dialog_close_button).tap();
   }
+
+  Future<void> tapCopyEmailAddressButton(AppLocalizations appLocalizations) async {
+    await $(appLocalizations.copy_email_address).tap();
+  }
 }