This pull request adds a new theme that I've just put together after procrastinating for 7 or 8 months lol
I made this pull request mainly because tobi already considered adding it to GtS upstream 5 minutes after [I made a fedi post about it](https://gts.apicrim.es/@awoo/statuses/01K18MJ1SD56581TANEKAKA6GV) ^^" (does this technically count as "discussing the proposed change"? probably not-) (though to be fair, this shows a slightly older revision of the theme -- you can see the most current one on [one of my fedi accounts](https://gts.apicrim.es/@128293). (…also I think it's quite obvious that I took the Ecks Pee theme as a basis ><)
Co-authored-by: Jade Arson <awoo@wolfyja.de>
Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4348
Co-authored-by: Jade Arson <codeberg@wolfyja.de>
Co-committed-by: Jade Arson <codeberg@wolfyja.de>
