* [feature] User sign-up form and admin notifs
* add chosen + filtered languages to migration
* remove stray comment
* chosen languages schmosen schmanguages
* proper error on local account missing
* [chore] Refactor HTML templates and CSS
* eslint
* ignore "Local"
* rss tests
* fiddle with OG just a tiny bit
* dick around with polls a bit more so SR stops saying "clickable"
* remove break
* oh lord
* don't lazy load avatar
* fix ogmeta tests
* clean up some cruft
* catch remaining calls to c.HTML
* fix error rendering + stack overflow in tag
* allow templating attributes
* fix indent
* set aria-hidden on status complementary content, since it's already present in the label anyway
* tidy up templating calls a little
* try to make styling a bit more consistent + readable
* fix up some remaining CSS issues
* fix up reports
* [feature] overhaul the oidc system
this allows for more flexible username handling and prevents account
takeover using old email addresses
* [feature] add migration path for old OIDC users
* [feature] nicer error reporting for users
* [docs] document the new OIDC flow
* [fix] return early on oidc error
* [docs]: add comments on the finalization logic
