The console tab kept its own `minimalLayout` state to track whether the page header was collapsed, separate from the VM page's `collapsedHeader`. The two desynced because the tab remounts on navigation while the VM page stays mounted.
Fix:
- Single source of truth `collapsedHeader` in the parent index.js
- Pass it to the child tab-console.js along with `setCollapsedHeader`
- Replace the `_toggleHeader` toggle with an explicit `_setCollapsedHeader(value)` setter
- Remove the duplicate local `minimalLayout` state that could get out of sync and use `collapsedHeader` instead
- Force off on VM shutdown (console no longer displayed) and on unmount (user changed page)
7cdb792bfe