Add at-symbol prepended to mention span title (#25684)

Co-authored-by: Sam BC <samuel.balbirnie-cumming@xdesign.com>

Change labels of live feeds tabs in web UI (#25683)

Fix regression of icon button colors in web UI (#25679)

Change button colors to increase hover/focus contrast and consistency (#25677)

Prevent duplicate concurrent calls of `/api/*/instance` in web UI (#25663)

Change dropdown icon above compose form from ellipsis to bars in web UI (#25661)

Change local and federated timelines to be in a single firehose column (#25641)

Use an Immutable Record as the root state (#25584)

Fix onboarding prompt being displayed because of disconnection gaps (#25617)

Remove the search button from UI header when logged out (#25631)

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

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

Fix compose form not being shown when clicking “Make your first post” on mobile (#25581)

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

Fix onboarding prompt flashing while home feed is loading in web UI (#25579)

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

Fix verified badge in account lists potentially including rel="me" links (#25561)

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

Remove unique accounts condition from Home onboarding prompt (#25556)

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

Fix j/k keyboard shortcuts on some status lists (#25554)