add all frontend files

node_modules/rc-virtual-list/es/utils/CacheMap.d.ts

@@ -0,0 +1,16 @@
+import type React from 'react';
+declare class CacheMap {
+    maps: Record<string, number>;
+    id: number;
+    diffRecords: Map<React.Key, number>;
+    constructor();
+    set(key: React.Key, value: number): void;
+    get(key: React.Key): number;
+    /**
+     * CacheMap will record the key changed.
+     * To help to know what's update in the next render.
+     */
+    resetRecord(): void;
+    getRecord(): Map<React.Key, number>;
+}
+export default CacheMap;