fix(sw): restore dropdown focus after position calculation

Reviewed-on: #31

packages/sw/src/components/sw-header/components/SWHeaderDropdown.tsx

@@ -109,11 +109,16 @@ export function useSWHeaderDropdown({ open: openProp, onOpenChange, disabled = f
   /** Focusable entries of the panel in DOM order (rows, inputs, footer). */
   const entries = () => Array.from(panelRef.current?.querySelectorAll<HTMLElement>("button:not(:disabled), input:not(:disabled)") ?? [])
 
+  // ArrowDown on the closed trigger asks for the entry focus. A fixed overlay (property window, SW popup) stays
+  // visibility: hidden until its position is measured, and focus() on it is a no-op: the request stays pending and is
+  // retried on the render that shows the list (the position update), then cleared once focus moved; closing drops it.
   useEffect(() => {
-    if (open && focusEntryRef.current) {
-      focusEntryRef.current = false
+    if (!open) { focusEntryRef.current = false; return }
+    if (focusEntryRef.current) {
       const current = panelRef.current?.querySelector<HTMLElement>('[aria-current="true"]:not(:disabled), [aria-pressed="true"]:not(:disabled)')
-      ;(current ?? entries()[0])?.focus()
+      const target = current ?? entries()[0]
+      target?.focus()
+      if (!target || document.activeElement === target) focusEntryRef.current = false
     }
   })