Improve dismissable banner buttons when they dont fit on 1 line (#25580)

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

Change header backgrounds to use fewer different colors in web UI (#25577)

Fix search not being easily findable on smaller screens in web UI (#25576)

Change labels and styles on the onboarding screen in web UI (#25559)

Add onboarding prompt when home feed too slow in web UI (#25267)

Fix CAPTCHA page not following design pattern of sign-up flow (#25395)

Change design of dropdowns in web UI (#25107)

Fix autocomplete suggestions being cut off in compose form (#25275)

Change follow button in account row to be more obvious in web UI (#24956)

Add card with who invited you to join when displaying rules on sign-up (#23475)

Fix overflow behavior of account rows (#25131)

Add a confirmation screen when suspending a domain (#25144)

Fix prev/next buttons color in media viewer (#25231)

Add hCaptcha support (#25019)

Change composer highlight border size to be more noticeable (#25010)

Fix videos being improperly positioned on safari (#24943)

Fix compose textarea scroll behavior (#24872)

Fix incorrect box shadow on avatar in thread view  (#24800)

Add ALT badges to media that has alternative text in web UI (#24782)

Change media elements to use aspect-ratio rather than compute height themselves (#24686)