fix(ui): align delete icon inline in game list

Apply game-item grid layout to game list rows and switch to two-column layout (1fr auto) so the delete action has a fixed-width slot on the right.

Keeps existing delete button and accessibility attributes; prevents layout stretch.
No behavioral changes beyond layout; click targets unchanged.

Refs #26

src/components/GameList.module.css

@@ -76,7 +76,7 @@
 /* Game item with better symmetry and spacing */
 .game-item {
     display: grid;
-    grid-template-columns: auto 1fr auto;
+    grid-template-columns: 1fr auto;
     align-items: center;
     gap: var(--space-md);
     padding: var(--space-lg);