Potential experiments

fix(app): request avatar and banner sizes the media proxy serves (#1842)

fix(media-proxy): stop re-encoding jpeg and video frames losslessly (#1841)

fix(admin): render sticker previews at 320px instead of 160px (#1840)

fix(desktop): stop reading whole voice backgrounds to classify them (#1839)

fix(unfurl): cache empty results briefly and key entries by provider (#1838)

perf(app): stop the service worker caching static assets (#1837)

fix(common): stop advertising static assets as immutable (#1836)

fix(media-proxy): stop proxy paths carrying fragments or credentials (#1835)

fix(media-proxy): clamp the webp effort override to the encoder maximum (#1834)

fix(media-proxy): serve and request images on one size ladder (#1833)

fix(media-proxy): serve and request images on one size ladder

fix(media-proxy): stop marking cached media immutable (#1832)

fix(common): keep the text after a block spoiler's closing pipes (#1831)

build(app): minify css with lightningcss in production builds (#1830)

feat(gifs): serve every medium, tiny and nano variant klipy offers (#1829)

fix(api): give desktop downloads a lifetime that follows the key (#1828)

perf(app-proxy): preconnect the media origin and revalidate the app shell (#1827)

fix(chat): slow mode indicator incorrect

Merge remote-tracking branch 'origin/canary' into canary

fix(guild_sidebar): correct not being able to move folders Fixes: #691