Co-authored-by: MD <1917406+md678685@users.noreply.github.com>
Fixes#3579 (async `/skull` command)
Fixes#3336 (improve codestyle of commands)
Partially addresses #3339 (`/spawn` and `/setspawn` are now hidden from tabcomplete)
Closes#3087 (`/paytoggle` is now a loop command)