The on-screen buttons are now back / home / forward. Home (and Alt+Home)
loads the site on screen from the address it was set up with under Sites &
Page Timing, hidden sites included. A shared buildTabUrl() builds that
address for both the first load and the home button.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013wi3ZQveYdjfcrEsyazq32