add all frontend files

node_modules/@rc-component/trigger/lib/Popup/Mask.d.ts

@@ -0,0 +1,10 @@
+import type { CSSMotionProps } from 'rc-motion';
+import * as React from 'react';
+export interface MaskProps {
+    prefixCls: string;
+    open?: boolean;
+    zIndex?: number;
+    mask?: boolean;
+    motion?: CSSMotionProps;
+}
+export default function Mask(props: MaskProps): React.JSX.Element;