TF-35 Add presentation for search mailbox

lib/main/localizations/app_localizations.dart

@@ -663,4 +663,11 @@ class AppLocalizations {
         name: 'discard'
     );
   }
+
+  String get hint_input_create_new_mailbox {
+    return Intl.message(
+        'Enter name of mailbox',
+        name: 'hint_input_create_new_mailbox'
+    );
+  }
 }