Rework all five favorites views into a fixed chrome block over a single
scrolling content area (prerequisite for list virtualization):
- Row 1: back/forward + "Favorites" title inline (left), the tab menu as
one floating group (right) — new FavTabMenu.
- Row 2: per-view action buttons (Play/Shuffle/select) float left, the
per-view toolbar (count + search + genre + group + sort + grid/list)
floats right. Lifted out of each tab's content into the fixed row.
- The lists/grids now scroll in a self-contained area below the divider
(own Flickable + ListScrollbar), instead of the whole page scrolling.
Behavior (search/sort/group/genre/multi-select/headers) unchanged.
cc
vicrodh
f8c8808ba7