v0.57.3

Fixed

• Login page now stays centered on desktop browsers. Before the first login no sidebar exists, but at viewports ≥1024px the app shell still switched to its sidebar row layout, which collapsed the sidebar-less login wrapper to its content width and pinned it to the left — making the desktop login look like the mobile layout. The shell now stays in column flow while the login page is mounted, so the form is fully centered again.