Skeleton loader for settings/api-keys empty state looks wrong

### Issue Summary

That's how it currently looks: 
<img width="1512" alt="Screenshot 2022-09-18 at 16 33 48" src="https://user-images.githubusercontent.com/30310907/190927225-ea0d9d8b-aec0-497d-af8a-ad602c5f6a3b.png">

But it should look the same as the empty state of settings/webhooks