Fix dropdown menu hotkeys not working when menu is closed

The nested menu PR introduced an early return null when !isOpen,
which prevented MenuItemHotKey components from being rendered.
Fixed by extracting hotKeyElements and rendering them even when
the menu is closed.

src-web/components/core/Dropdown.tsx

@@ -766,8 +766,24 @@ const Menu = forwardRef<Omit<DropdownRef, 'open' | 'isOpen' | 'toggle' | 'items'
       </m.div>
     );
 
+    // Hotkeys must be rendered even when menu is closed (so they work globally)
+    const hotKeyElements = items.map(
+      (item, i) =>
+        item.type !== 'separator' &&
+        item.type !== 'content' &&
+        !item.hotKeyLabelOnly &&
+        item.hotKeyAction && (
+          <MenuItemHotKey
+            key={`${item.hotKeyAction}::${i}`}
+            onSelect={handleSelect}
+            item={item}
+            action={item.hotKeyAction}
+          />
+        ),
+    );
+
     if (!isOpen) {
-      return null;
+      return <>{hotKeyElements}</>;
     }
 
     if (isSubmenu) {
@@ -776,20 +792,7 @@ const Menu = forwardRef<Omit<DropdownRef, 'open' | 'isOpen' | 'toggle' | 'items'
 
     return (
       <>
-        {items.map(
-          (item, i) =>
-            item.type !== 'separator' &&
-            item.type !== 'content' &&
-            !item.hotKeyLabelOnly &&
-            item.hotKeyAction && (
-              <MenuItemHotKey
-                key={`${item.hotKeyAction}::${i}`}
-                onSelect={handleSelect}
-                item={item}
-                action={item.hotKeyAction}
-              />
-            ),
-        )}
+        {hotKeyElements}
         <Overlay noBackdrop open={isOpen} portalName="dropdown-menu">
           {menuContent}
         </Overlay>