The login page stored its theme under thecloud-theme while the console read floci-theme, so a choice made at sign-in was lost. Both now use floci-theme (falling back to the old key once), and useTheme tolerates unavailable storage.
Adds the cyber theme to the console and login page, replaces the dark/light toggle with a theme switcher, and moves the login page script to /login.js so it is served under the existing CSP.
Zakaria