add all frontend files

node_modules/rc-collapse/lib/index.d.ts

@@ -0,0 +1,8 @@
+/// <reference types="react" />
+import Collapse from './Collapse';
+export type { CollapsePanelProps, CollapseProps } from './interface';
+export default Collapse;
+/**
+ * @deprecated use `items` instead, will be removed in `v4.0.0`
+ */
+export declare const Panel: import("react").ForwardRefExoticComponent<import("./interface").CollapsePanelProps & import("react").RefAttributes<HTMLDivElement>>;