Update the content for Donation page

[admwx7]

The donation page needs some more content as well as a formatting overhaul for the content itself, it's currently 4 buttons clustered together on the left side of the page.

[nb333]

This is a great example of what we're wanting to achieve: https://gpgtools.org/donate.html

There's the donate section, then below it is the expandable list of individual and corporate donors.