General project feedback
Some general remarks (started writing in #17 but new issue is better):
The Fediverse Party repo should have the URL in the top description as well as in the Readme. I always directly navigated to the watchlists and just now became aware of the beautiful site you are creating.
Note that https://fediverse.gitlab.io/ should probably be taken offline, or redirect. It has an outdated map.
Fediverse.party looks fantastic! Clean, crisp and playful (with the map). I think you could add the goal of Onboarding to the Readme. This site will serve very well in attracting the non-typical, non-technical crowds to the Fediverse.