add all frontend files

node_modules/rc-menu/es/SubMenu/index.d.ts

@@ -0,0 +1,14 @@
+import * as React from 'react';
+import type { SubMenuType } from '../interface';
+export interface SubMenuProps extends Omit<SubMenuType, 'key' | 'children' | 'label'> {
+    title?: React.ReactNode;
+    children?: React.ReactNode;
+    /** @private Used for rest popup. Do not use in your prod */
+    internalPopupClose?: boolean;
+    /** @private Internal filled key. Do not set it directly */
+    eventKey?: string;
+    /** @private Do not use. Private warning empty usage */
+    warnKey?: boolean;
+}
+declare const SubMenu: React.ForwardRefExoticComponent<Omit<SubMenuProps, "ref"> & React.RefAttributes<HTMLLIElement>>;
+export default SubMenu;