Adds optional actions: bool = true param. When true (default), renders
the 3-dot menu trigger at the end of the row. Album detail / Search /
History / Liked tabs all consume TrackRow so they pick up the menu
transitively.
Pair with c8baaa5 which wired the button into the other 3 surfaces;
this commit completes the wire-up by including TrackRow itself (its
write was missed in the previous commit).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
HorizontalScrollRow takes an optional shared ScrollController so
multi-row sections (Most played: 3 rows) couple their scroll like the
web HorizontalScrollRow.svelte. Cards fall back to the synced
album-fallback.svg when coverUrl is empty.
bvandeusen