docs(style): make more responsive for mobile (#10853)

* docs(style): make more responsive for mobile

* Make a responsive navbar

* more fixes and tweaks

* Add README instructions

docs/src/components/DoczMenu.tsx

@@ -0,0 +1,57 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+import React from 'react';
+import { useMenus, Link } from 'docz';
+import { Menu } from 'antd';
+import { getActiveMenuItem } from '../utils';
+
+const { SubMenu } = Menu;
+
+export default () => {
+  const menus = useMenus();
+  const { openKey, selectedKey } = getActiveMenuItem(menus);
+  return (
+    <Menu
+      mode="inline"
+      defaultOpenKeys={[openKey]}
+      defaultSelectedKeys={[selectedKey]}
+    >
+      {menus.map((menuItem) => {
+        if (menuItem.menu?.length > 0) {
+          return (
+            <SubMenu key={menuItem.id} title={menuItem.name}>
+              {menuItem.menu
+                .sort((a, b) => a.index - b.index)
+                .map((submenuItem) => (
+                  <Menu.Item key={submenuItem.id}>
+                    <Link to={submenuItem.route}>{submenuItem.name}</Link>
+                  </Menu.Item>
+                ))}
+            </SubMenu>
+          );
+        }
+        return (
+          <Menu.Item key={menuItem.id}>
+            <Link to={menuItem.route}>{menuItem.name}</Link>
+          </Menu.Item>
+        );
+      })}
+    </Menu>
+  );
+};