More syntax errors

Author: Daltz333

source/_extensions/pwa_service_files/sw.js

@@ -14,7 +14,7 @@ self.addEventListener('install', function (e) {
             await addKeys(tofetch)
           }
         })
-        .catch((error) => { {
+        .catch((error) => {
           console.error(error.message);
         });
   }());