add all frontend files

node_modules/antd/lib/splitter/Panel.d.ts

@@ -0,0 +1,7 @@
+import React from 'react';
+import type { InternalPanelProps, PanelProps } from './interface';
+export declare const InternalPanel: React.ForwardRefExoticComponent<InternalPanelProps & {
+    children?: React.ReactNode | undefined;
+} & React.RefAttributes<HTMLDivElement>>;
+declare const Panel: React.FC<React.PropsWithChildren<PanelProps>>;
+export default Panel;