feat(tracklist): play count, last played, BPM columns + Song Info rows (#730)

* feat(tracklist): play count, last played, and BPM columns (#516)

Adds three opt-in columns to Album / Playlist / Favorites tracklists,
plus the same fields in the Song Info modal. Picks up Navidrome's
existing `playCount` / `played` / `bpm` from the Subsonic response — no
new API calls.

- `SubsonicSong` gains `playCount`, `played`, `bpm` (already populated
  by Navidrome's Subsonic API, just unmapped in the TS model).
- `albumTrackListHelpers.COLUMNS`, `PL_COLUMNS` (PlaylistDetail), and
  `FAV_COLUMNS` (Favorites) get the three new entries. Genre also added
  to the playlist column set for parity with the other two lists.
- Render uses `.track-duration` (12px tabular, centered, muted) for the
  numeric stats and `.track-genre` (11px text, muted) for the relative
  last-played timestamp via the existing `formatLastSeen` helper.
- Sort logic extended in `playlistDisplayedSongs`,
  `useAlbumDetailSort`, and `useFavoritesSongFiltering` for the three
  new keys.
- `SongInfoModal` gets matching rows (BPM / Play count / Last played).
- `useTracklistColumns.gridTemplate` / `gridMinWidth` fall back to the
  ColDef's `defaultWidth` when a visible column has no saved width
  (newly added column on an old prefs blob would otherwise emit
  `undefinedpx` and collapse the row layout until reset-to-defaults).
- BPM cells skip the rendering when Navidrome returns 0 (default for
  untagged files) — show `—` instead of `0`.
- i18n: `albumDetail.trackPlayCount / trackLastPlayed / trackBpm` and
  `songInfo.playCount / lastPlayed / bpm` in all 9 locales.

Suggested by jbigginswyl (#516).

* docs(changelog): tracklist Plays / Last played / BPM columns (#730)

src/components/albumTrackList/TrackRow.tsx

@@ -12,6 +12,8 @@ import { usePreviewStore } from '../../store/previewStore';
 import StarRating from '../StarRating';
 import { codecLabel, type ColKey } from '../../utils/componentHelpers/albumTrackListHelpers';
 import { formatLongDuration } from '../../utils/format/formatDuration';
+import { formatLastSeen } from '../../utils/componentHelpers/userMgmtHelpers';
+import i18n from '../../i18n';
 
 type ContextMenuFn = (
   x: number,
@@ -191,6 +193,24 @@ export const TrackRow = React.memo(function TrackRow({
             {song.genre ?? '—'}
           </div>
         );
+      case 'playCount':
+        return (
+          <div key="playCount" className="track-duration">
+            {song.playCount ?? '—'}
+          </div>
+        );
+      case 'lastPlayed':
+        return (
+          <div key="lastPlayed" className="track-genre">
+            {song.played ? formatLastSeen(song.played, i18n.language, '—') : '—'}
+          </div>
+        );
+      case 'bpm':
+        return (
+          <div key="bpm" className="track-duration">
+            {song.bpm && song.bpm > 0 ? song.bpm : '—'}
+          </div>
+        );
       default:
         return null;
     }