feat(ui): keep the current view in the url hash

static/style.css

@@ -48,6 +48,7 @@ button:disabled { opacity: 0.6; cursor: default; }
 }
 .card.clickable { cursor: pointer; transition: border-color 0.1s, background 0.1s; }
 .card.clickable:hover { border-color: var(--accent); background: #262b35; }
+.card.clickable:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }
 .card img, .nocover { width: 60px; height: 90px; object-fit: cover; border-radius: 4px; flex-shrink: 0; }
 .nocover { background: var(--bg); display: flex; align-items: center; justify-content: center; color: var(--muted); font-size: 1.5rem; }
 .card-body { display: flex; flex-direction: column; gap: 0.25rem; min-width: 0; }