Improved Homepage

Your account menu on the homepage, and a dark mode fix at the bottom of the page

Signed-in previews of the homepage now show the same identity menu as the dashboard, and the closing section and footer now follow dark mode.

The public homepage can now show your identity menu - avatar, account settings, teams, billing, help and the theme picker - next to the Dashboard button when you are signed in, the same menu used throughout the app.

Also fixed: the "End of current list" section and the footer at the bottom of the homepage kept a light background in dark mode. Both now use the app's shared dark surface tokens and switch with the rest of the page.