Improve Patreon Tier list on Donate Page

[dellis1972]

Currently the Patreon Supporters list looks pretty horrible.
We should update it do it looks nice, I have no idea what that means though :).

If possible we should try to use the Patreon API to get the data rather than having to use the patreons.json file which is updated manually.

[AristurtleDev]

As far as I'm aware, the only way to get a list of the pledges is through this API call https://docs.patreon.com/#fetch-a-creator-profile-and-campaign-info which requires an access_token which mean OAuth authentication.

Since the MonoGame site is a static site, that means the API key to get the access_token would need to be stored inside a script that's run on the page client side, which you wouldn't want to expose the API key like that.

Unless someone else more with more knowledge on the Patreon API knows a different method, I'd have to think on this one.

[dellis1972]

@AristurtleDev ok, we shall park the API stuff. Lets just clean up the page for now 😄