fix(ui): fix shuffle badge shift, regenerate PNG icons, fix favicon path

- styles.css: remove overflow:hidden from .player-info-wrap — it was
  clipping the player-status-row and shifting the shuffle badge
- index.html: use absolute /icon.svg path for favicon; add PNG fallback
  for browsers without SVG favicon support
- icon-192.png / icon-512.png: regenerated from new equalizer SVG design

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

styles.css

@@ -276,7 +276,7 @@ button:focus{outline:none}
 .player-art::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:8px;height:8px;border-radius:50%;background:var(--bg);box-shadow:0 0 0 2px rgba(255,255,255,.15);pointer-events:none;opacity:0;transition:opacity .3s}
 .player-art.spinning::after{opacity:1}
 @keyframes spin{to{transform:rotate(360deg)}}
-.player-info-wrap{display:flex;align-items:center;gap:8px;min-width:0;overflow:hidden}
+.player-info-wrap{display:flex;align-items:center;gap:8px;min-width:0}
 .player-info{min-width:0;display:flex;flex-direction:column;justify-content:center}
 .player-title{font-size:13px;font-weight:600;line-height:1.2;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:color .15s;margin-bottom:2px}
 #player-artist-name{color:var(--accent)}