add all frontend files

node_modules/rc-rate/es/useRefs.js

@@ -0,0 +1,13 @@
+import * as React from 'react';
+export default function useRefs() {
+  var nodeRef = React.useRef({});
+  function getRef(index) {
+    return nodeRef.current[index];
+  }
+  function setRef(index) {
+    return function (node) {
+      nodeRef.current[index] = node;
+    };
+  }
+  return [getRef, setRef];
+}