- Remove the Logout button from the About tab content.
- Add the Logout button at the bottom of the Connection tab so users
can sign out directly where they manage their connection.
- Delete the unused, duplicate AboutSection() composable (it was never
called and carried its own Logout button) to keep a single source of
truth for the action.
Logout behavior is unchanged: it still calls viewModel.logout() then
onLogout() (navigates to login). Verified with assembleDebug + ktlint.