Merge commit 'b922ad7a1b4bc8d968d0df2c7f307d4fec53435d' into glitch-soc/merge-upstream

Conflicts:
- `package.json`:
  Upstream changed various script definitions in lines surrounding the one for
  `i18n:extract`, which had glitch-soc-specific changes.
  Updated the scripts as upstream did, while keeping our changes to
  `i18n:extract`.

Merge pull request #2242 from ClearlyClaire/glitch-soc/merge-upstream

Merge upstream changes up to 00c222377db0e305ac3f4a15bf1c18eb89c1f45f

Merge commit '00c222377db0e305ac3f4a15bf1c18eb89c1f45f' into glitch-soc/merge-upstream

Conflicts:
- `.rubocop_todo.yml`:
  Took upstream's changes.

Merge pull request #2237 from ClearlyClaire/glitch-soc/merge-upstream

Merge upstream changes

Translate CW, poll options and media descriptions (#24175)

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

Fix `null` signUp URL in various places (#25190)

Merge branch 'main' into glitch-soc/merge-upstream

Merge commit '391c089d0db58d731765dba730a5e1f2fe8570a6' into glitch-soc/merge-upstream

Conflicts:
- `.github/dependabot.yml`:
  We removed it from glitch-soc.
  Keep it deleted.

Merge commit 'd27216dc4616d80659c0cc5d2a55394e0e1ae874' into glitch-soc/merge-upstream

Conflicts:
- `.eslintrc.js`:
  Upstream moved a configuration block in which we had added a glitch-only
  path.
  Moved the configuration block as upstream did.
- other files:
  Upstream reordered imports, and those files had different ones.
  Kept our version and reordered imports using the same rules.

Merge commit 'b896b16cb3c8626fbee12a7eda7f882114b1a040' into glitch-soc/merge-upstream

Merge commit '5a16bd7bf4591feb852364da9b84407438c9b7d6' into glitch-soc/merge-upstream

Merge commit '8f66126b1010e0aaaa8b5f2a2f4ea8a28824e2b7' into glitch-soc/merge-upstream

Merge pull request #2236 from ClearlyClaire/glitch-soc/merge-upstream

Merge upstream changes up to e387175fc9a3ebfd72ab45ebfe43ecfabef7b0c3

Merge commit 'e387175fc9a3ebfd72ab45ebfe43ecfabef7b0c3' into glitch-soc/merge-upstream

Merge commit '2ce0b666a139726dc406e6c1887728553b947e59' into glitch-soc/merge-upstream

Conflicts:
- `config/webpack/generateLocalePacks.js`:
  A dependency update changed how functions are imported.
  Also, some linting fixes not applicable to glitch-soc.

Rewrite actions/modal and reducers/modal with typescript (#24833)

Update inconsistent `defaultMessage` (#25114)

Fix `null` signUp URL handling from #25014 (#25108)

Enforce import order with ESLint (#25096)

Add support for custom sign-up URLs (#25014)