Revamp public profiles

[Wotuu]

If a route creator comes along and presents their routes on the site, they will want to upload a picture (already possible), write a small bio, connect their socials so I can display them and make their page presentable by pinning certain routes or route collections (#700) to their profile.

The goal is that the public profile will be linked on their twitch and can be easily findable through the route creator page.