TF-1323 Fix can not attach image on mobile and web

lib/main/localizations/app_localizations.dart

@@ -2754,7 +2754,7 @@ class AppLocalizations {
       name: 'saveEmailAsDraftFailureWithSetErrorTypeOverQuota',
     );
   }
-  
+
   String get mailBoxes {
     return Intl.message(
       'Mailboxes',
@@ -2772,4 +2772,11 @@ class AppLocalizations {
       'Hide mailbox',
       name: 'hideMailBoxes');
   }
+
+  String get thisImageCannotBeAdded {
+    return Intl.message(
+      'This image cannot be added.',
+      name: 'thisImageCannotBeAdded'
+    );
+  }
 }

lib/main/routes/route_utils.dart

@@ -1,8 +1,8 @@
 
-import 'package:core/core.dart';
 import 'package:core/data/model/query/query_parameter.dart';
 import 'package:core/data/network/config/service_path.dart';
 import 'package:core/utils/app_logger.dart';
+import 'package:core/utils/build_utils.dart';
 import 'package:jmap_dart_client/jmap/core/id.dart';
 import 'package:jmap_dart_client/jmap/mail/email/email.dart';
 import 'package:jmap_dart_client/jmap/mail/mailbox/mailbox.dart';