Sort control: open with focus on the checked option, not the first

src/app/components/SortControl.tsx

@@ -109,7 +109,12 @@ export function SortControl() {
       popRef.current = node;
       if (node) {
         place();
-        node.querySelector<HTMLElement>('[aria-checked="true"], button')?.focus();
+        // Two queries, not one selector list — `querySelector('a, b')` returns the
+        // first match in document order, which would always be the first button.
+        const target =
+          node.querySelector<HTMLElement>('[aria-checked="true"]') ??
+          node.querySelector<HTMLElement>('button');
+        target?.focus();
       }
     },
     [place],