add all frontend files

node_modules/rc-util/es/unsafeLifecyclesPolyfill.js

@@ -0,0 +1,24 @@
+import React from 'react';
+var unsafeLifecyclesPolyfill = function unsafeLifecyclesPolyfill(Component) {
+  var prototype = Component.prototype;
+  if (!prototype || !prototype.isReactComponent) {
+    throw new Error('Can only polyfill class components');
+  }
+
+  // only handle componentWillReceiveProps
+  if (typeof prototype.componentWillReceiveProps !== 'function') {
+    return Component;
+  }
+
+  // In React 16.9, React.Profiler was introduced together with UNSAFE_componentWillReceiveProps
+  // https://reactjs.org/blog/2019/08/08/react-v16.9.0.html#performance-measurements-with-reactprofiler
+  if (!React.Profiler) {
+    return Component;
+  }
+
+  // Here polyfill get started
+  prototype.UNSAFE_componentWillReceiveProps = prototype.componentWillReceiveProps;
+  delete prototype.componentWillReceiveProps;
+  return Component;
+};
+export default unsafeLifecyclesPolyfill;