Add a primary button with a Plus icon to the SidebarMenu and adjust styles for better layout

Touchkebao/src/pages/pc/ckbox/weChat/components/SidebarMenu/SidebarMenu.module.scss

@@ -13,6 +13,8 @@
       margin-bottom: 16px;
       padding: 0;
       background: #fff;
+      display: flex;
+      gap: 10px;
     }
 
     .tabsContainer {

Touchkebao/src/pages/pc/ckbox/weChat/components/SidebarMenu/index.tsx

@@ -1,6 +1,6 @@
 import React, { useState, useEffect } from "react";
-import { Input, Skeleton } from "antd";
-import { SearchOutlined } from "@ant-design/icons";
+import { Input, Skeleton, Button } from "antd";
+import { SearchOutlined, PlusOutlined } from "@ant-design/icons";
 import WechatFriends from "./WechatFriends";
 import MessageList from "./MessageList/index";
 import FriendsCircle from "./FriendsCicle";
@@ -126,6 +126,7 @@ const SidebarMenu: React.FC<SidebarMenuProps> = ({ loading = false }) => {
           onClear={handleClearSearch}
           allowClear
         />
+        <Button type="primary" icon={<PlusOutlined />}></Button>
       </div>
 
       {/* 标签页切换 */}