The banners sat outside the h-screen shell, so the page scrolled and the content
scrolled — two scrollbars whenever a maintenance window was active.
Maintenance notices are now a bell with a count in the header, next to the user
menu that was otherwise the only thing up there. Impersonation stays visible as
a header chip rather than moving into the dropdown: it is a mode, not a notice,
and acting as someone else without noticing is how mistakes happen.
Also: the VPN status pill wrapped onto two lines in a narrow column.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>