Fix React ref access error and useMemo dependency in Kanban

Co-authored-by: hotlong <50353452+hotlong@users.noreply.github.com>

Author: Copilot

packages/plugin-kanban/src/index.tsx

@@ -52,7 +52,7 @@ export const KanbanRenderer: React.FC<KanbanRendererProps> = ({ schema }) => {
 
     // Default: Return columns as-is (assuming they have 'cards' inside)
     return columns;
-  }, [schema.columns, schema.data, schema.groupBy]);
+  }, [schema]);
 
   return (
     <Suspense fallback={<Skeleton className="w-full h-[600px]" />}>