add all frontend files

node_modules/antd/es/skeleton/Button.d.ts

@@ -0,0 +1,8 @@
+import * as React from 'react';
+import type { SkeletonElementProps } from './Element';
+export interface SkeletonButtonProps extends Omit<SkeletonElementProps, 'size'> {
+    size?: 'large' | 'small' | 'default';
+    block?: boolean;
+}
+declare const SkeletonButton: React.FC<SkeletonButtonProps>;
+export default SkeletonButton;