Recreate Fedwiki UI

⚠️ This was Archived because Ward actually responded. Contributing upstream benefits more people than a rewrite.

I would like to contribute to Federated Wiki but it looks hard. I opened an issue for Open Search for Fed Wiki and got shut down immediately.

This leads me to think I could try recreate a minimalistic version of this that supports mobile and light/dark themes.

I also want to be able to take notes on the fly, and that means a better editing experience on mobile.