Handle unknown statuses as an error

At first I opted to handle the 'invalid-request' manually. But having a
default switch-case to handle all unhandled stati as an error makes more
sense.

And before this commit, the invalid request was handled as a Push
Notification failure. But that was not my intention. I wanted to render
the error page, and for that, we need to call the switchToStatusRequestError
method instead.

assets/typescript/AuthenticationPageService.ts

@@ -106,12 +106,12 @@ export class AuthenticationPageService {
       case 'challenge-expired':
         this.switchToChallengeHasExpired();
         break;
-      case 'invalid-request':
-        this.switchToNotificationFailed();
-        break;
       case 'needs-refresh':
         this.reloadPage();
         break;
+      default:
+        this.switchToStatusRequestError();
+        break;
     }
   };