feat(slint): Discover "View all" pages + reusable AlbumListRow + recently-played metadata

Per-module discover See-All pages (new releases, press accolades, ideal
discography, qobuzissimes, albums of the week, most streamed) reachable
from each carousel's "View all" link: a paginated grid OR list view with
client-side search, genre filter, and a fixed header. Adds a reusable
AlbumListRow (columns #/ITEM/TYPE/SOURCE/QUALITY/TRACKS/YEAR, SOURCE
hideable, reuses QualityBadgeFull) with play-on-hover + even/odd zebra.
Recently Played albums now carry genre + localized release date + quality
(captured at play time, no extra fetch). Shared home::map_album /
card_to_item reused; grid-only AlbumCardItem literals get ..Default.

cc

crates/qbz-slint/ui/assets/icons/arrow-up-down.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#ffffff" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+  <path d="m21 16-4 4-4-4" />
+  <path d="M17 20V4" />
+  <path d="m3 8 4-4 4 4" />
+  <path d="M7 4v16" />
+</svg>

crates/qbz-slint/ui/assets/icons/layout-grid.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#ffffff" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+  <rect width="7" height="7" x="3" y="3" rx="1" />
+  <rect width="7" height="7" x="14" y="3" rx="1" />
+  <rect width="7" height="7" x="14" y="14" rx="1" />
+  <rect width="7" height="7" x="3" y="14" rx="1" />
+</svg>

crates/qbz-slint/ui/assets/icons/list.svg

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+<svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="#ffffff" stroke-width="2" stroke-linecap="round" stroke-linejoin="round">
+  <path d="M3 12h.01" />
+  <path d="M3 18h.01" />
+  <path d="M3 6h.01" />
+  <path d="M8 12h13" />
+  <path d="M8 18h13" />
+  <path d="M8 6h13" />
+</svg>