feat: remove artist subtitle from album cards

Artist has its own tab so the redundant name below each album card isn't needed.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

src/components.js

@@ -20,7 +20,7 @@ export function makeCard(title, sub, imgUrl, fallback='💿') {
 
 export function makeAlbumCard(a) {
   const cv = coverUrl(a.coverArt, 512);
-  const c = makeCard(a.name, a.artist||'', cv, '💿');
+  const c = makeCard(a.name, '', cv, '💿');
   c.querySelector('.card-art').onclick = (e) => { e.stopPropagation(); quickPlayAlbum(a); };
   c.querySelector('.card-info').onclick = () => navigate('album-detail', a);
   return c;