Merge commit '1cdcd9dc08c91321f80ffe4822f6a3da15abeb2c' into glitch-soc/merge-upstream

Conflicts:
- `app/javascript/packs/public.jsx`:
  Upstream updated code that we actually moved to `app/javascript/core/settings.js`.
  Applied the changes there.

Merge pull request #2380 from ClearlyClaire/glitch-soc/merge-upstream

Merge upstream changes up to 1cb978bcc3d291a045f367e072ca0af1a1c4dbbc

Merge commit '1cb978bcc3d291a045f367e072ca0af1a1c4dbbc' into glitch-soc/merge-upstream

Add ability to delete avatar or header picture via the API (#25124)

Co-authored-by: Claire <claire.github-309c@sitedethib.com>

Allow setting a custom HTTP method in CacheBuster (#26528)

Co-authored-by: Jorijn Schrijvershof <jorijn@jorijn.com>

Fix cached posts including stale stats (#26409)

Merge pull request #2368 from ClearlyClaire/glitch-soc/merge-upstream

Merge upstream changes up to 496eb6f7a4fa7de54f26da9642a76e6884648102

Merge commit '121443c0fca383268b8022c048dd137994785aff' into glitch-soc/main

Conflicts:
- `.rubocop_todo.yml`:
  Upstream regenerated this file, glitch-soc had a specific ignore.

Merge pull request #2366 from ClearlyClaire/glitch-soc/merge-upstream

Merge upstream changes up to 3a4d3e9d4b573c400eec1743471d54cdccae50a5

Merge commit '3a4d3e9d4b573c400eec1743471d54cdccae50a5' into glitch-soc/merge-upstream

Merge pull request #2365 from ClearlyClaire/glitch-soc/merge-upstream

Merge upstream up to 425d77f8124a50fc033e8fb3bdf7b89a6a25f4fa

Merge commit '425d77f8124a50fc033e8fb3bdf7b89a6a25f4fa' into glitch-soc/merge-upstream

Conflicts:
- `.rubocop_todo.yml`:
  Upstream regenerated this file, glitch-soc had a specific ignore.
- `README.md`:
  Upstream updated its README, but glitch-soc has a completely different one.
  Kept glitch-soc's README

Avoid connecting to a running ES instance in ES search check spec (#26413)

Restore console behavior in `test` env (#26401)

Fix blocking subdomains of an already-blocked domain (#26392)

Fix list import concurrently creating lists of the same name (#26372)

Spec media attachment speedups (#25416)

Add alt text for preview card thumbnails (#26184)

Add `GET /api/v1/instance/languages` to REST API (#24443)

Co-authored-by: Eugen Rochko <eugen@zeonfederated.com>
Co-authored-by: Claire <claire.github-309c@sitedethib.com>

Refactor: replace whitelist_mode mentions with limited_federation_mode (#26252)