add all frontend files

node_modules/rc-tree-select/lib/TreeNode.d.ts

@@ -0,0 +1,9 @@
+import type * as React from 'react';
+import type { DataNode, Key } from './interface';
+export interface TreeNodeProps extends Omit<DataNode, 'children'> {
+    value: Key;
+    children?: React.ReactNode;
+}
+/** This is a placeholder, not real render in dom */
+declare const TreeNode: React.FC<TreeNodeProps>;
+export default TreeNode;