[Glitch] Run eslint --fix

I don't like it changing files this way, but it's basically what
c49213f0ea and a few others did.

app/javascript/flavours/glitch/actions/onboarding.js

@@ -11,4 +11,4 @@ export function showOnboardingOnce() {
       dispatch(saveSettings());
     }
   };
-};
+}