Fix color of language options in Windows dark mode

Add support for full Unicode character set (#15)

Add an `/api/stats` endpoint for personal use

Add dark mode functionality (#4)

Use `history.replaceState` on initial redirect

Update README with new screenshot

Adjust button styling

Implement proper transformation for cursors

Implement MVP of remote selections

Stop redirecting all routes to `index.html`

Frontend updates and refactoring

Fix frontend bug in persisting state

Limit size of documents to 100 KB

Add user presence to the frontend

Eliminate the lost wakeups problem