Display avatar when providing a supabase storage file url in avatar_url

When setting a user's raw_user_meta_data's avatar_url attribute to a Supabase Storage file URL (like the avatar is not shown inside the Authentication section. This is because only google user content and github user content images are allowed.

This could be a good idea. It would make distinguishing users easier at scale (for example, by showing their avatar url stored in a supabase storage bucket).