[chore/frontend] Put fonts in folders, update ecks pee to atkinson-hyperlegible next/mono (#4148)

Juggles our fonts around a bit to use subdirs for font families, and also updates atkinson hyperlegible to atkinson hyperlegible next, which includes monospace fonts.

Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4148
Reviewed-by: Daenney <daenney@noreply.codeberg.org>
Co-authored-by: tobi <tobi.smethurst@protonmail.com>
Co-committed-by: tobi <tobi.smethurst@protonmail.com>

web/assets/fonts/OFL.txt

@@ -1,5 +1,3 @@
-Copyright 2012 Google Inc. All Rights Reserved.
-
 This Font Software is licensed under the SIL Open Font License,
 Version 1.1.