Admins: Do you run an instance with S3 enabled?

Remote media is no longer cached on S3 (when S3 is enabled). You can restore this by setting `MEDIA_REMOTE_STORE_CLOUD=true` in .env

https://github.com/pixelfed/pixelfed/blob/dev/config/media.php#L12-L21

We're also working on a few tools to better manage local and S3 media! #pixelfed #pixeldev