Add comment to map menu

src/components/map/MapMenu.js

@@ -79,6 +79,7 @@ function MapMenu({
       }}
       contentRef={handleModalContent}
     >
+      {/* Stop keyboard events when modal is open to prevent shortcuts from triggering */}
       <div
         onKeyDown={(e) => e.stopPropagation()}
         onKeyUp={(e) => e.stopPropagation()}