Move GitHub relates code to server side

[TuanaCelik]

Hey @carlosgauci - I remember that you brought this up when first implementing the website, and we think it's time to make this change:
There are a few things on the website that need a GitHub access token, and the code is on the client side currently.

As far as I can tell, these are code snippets that pulls in information such as star count, contributor count etc.

Could we see if we can move all of this to the server side and stop fetching these tokens even as environment variables into the client side?