Use Window color roles for app drawer and overlay scrims, and update\ndock keyboard navigation focus paths. Extend folio and convergence\nregression checks to lock in the new theme and navigation behavior.
Use Motion wrappers and state layers across Folio and Halcyon delegates, drawers, folders, resize handles, and dock feedback. Also align Folio edit/drop highlights with theme colors instead of fixed white overlays.
interactive starts false at atYBeginning so HomeScreenState can
own the swipe-up gesture that opens the drawer on phones. No such
gesture exists in convergence mode, leaving the grid permanently
non-interactive. Short-circuit the condition when convergence
mode is active.
