I'm building a FlutterFlow app with a reusable BottomNavigation component. It renders visually but cannot be selected as the Custom Nav Bar Component in App Settings. i created BottomNavigation component using FlutterFlow's AI designer. It looks right and includes all six nav items with icons and labels. It displays fine when added to pages, but I can't select it as the custom nav bar in app settings because it shows up in red and the tooltip says it needs extra parameters, but I can't find a way to add those required parameters in my editor. Is there a different way to create a custom nav bar that FlutterFlow will accept?