add all frontend files

node_modules/rc-menu/es/hooks/useDirectionStyle.js

@@ -0,0 +1,17 @@
+import * as React from 'react';
+import { MenuContext } from "../context/MenuContext";
+export default function useDirectionStyle(level) {
+  var _React$useContext = React.useContext(MenuContext),
+    mode = _React$useContext.mode,
+    rtl = _React$useContext.rtl,
+    inlineIndent = _React$useContext.inlineIndent;
+  if (mode !== 'inline') {
+    return null;
+  }
+  var len = level;
+  return rtl ? {
+    paddingRight: len * inlineIndent
+  } : {
+    paddingLeft: len * inlineIndent
+  };
+}