typo

app/translations/en.json

       "defaultTitle": "Edit PkGuid",
       "defaultToolbarTitle": "PkGuid ~ Edit",
       "title": "Edit PkGuid '{text}'",
-      "toolbarTitle": "PkGuid ~ Edit ~ {text}"
+      "toolbarTitle": "PkGuids ~ Edit ~ {text}"
     },
     "add": {
       "defaultTitle": "New PkGuid",
-      "defaultToolbarTitle": "PkGuid ~ New"
+      "defaultToolbarTitle": "PkGuids ~ New"
     }
   }
 }