move follow button under the avatar

[paulantir]

This pull request fixes issue #41

[danirukun]

Thanks! A couple small comments:

1. I would probably make the follow button a bit smaller:
   

For example, on smaller phones like an iPhone 12, there is basically no space left, so we should compensate for that a bit until it looks right:

2. Same goes for the guest user view: we need to think how to fit this better,
   

[paulantir]

Hey @danirukun thanks for you Feedback! Would love to fix the size from the button.

[danirukun]

@plrcgrss is better, for now it is fine in authenticated views
However, we should fit stuff better when viewing passes anonymously:

Some ideas:

• Change font size and style to use less space for the button, change copy to "Sign up"
• Change text "Login or Signup to follow" size or remove completely?