- Local Library Tracks: build the play queue from the already-loaded rows
(instant) instead of re-querying the DB + filling covers on every click.
- Mouse back/forward buttons now drive history nav over track rows and album
cards (a TouchArea swallows them, so each interactive surface forwards them;
the AppShell catcher only saw the gaps).
- ExpandableSearch open width trimmed 20px (no longer rides over left controls
on small screens).
- QbzSelect toolbar (Group/Sort/filter) trimmed 40px total.
cc