feat: integrate customer service chat functionality and add socket.io-client dependency

- Implemented a customer service chat interface in the application.
- Added socket.io-client for real-time communication.
- Updated language files to include customer service related translations.
- Modified navigation to direct users to the customer service page.
- Enhanced UI elements for better user experience in chat interactions.

language/cn.js

@@ -86,6 +86,7 @@ var cn = {
 
   user: "我的",
   userBalance: "余额",
+  customerService: "在线客服",
   logout: "退出登录",
   tip: "提示",
   logoutTip: "确认退出登录？",
@@ -174,6 +175,21 @@ var cn = {
   chooseCoin: "请选择币种",
   flagshipHall: "旗舰厅",
   liveHall: "现场厅",
+
+  // 在线客服
+  csConnected: "已连接",
+  csConnecting: "连接中...",
+  csWelcome: "欢迎使用在线客服",
+  csBusy: "客服繁忙，请稍候...",
+  csInputTip: "请输入您的问题",
+  csInputPlaceholder: "输入消息，点击发送...",
+  csSend: "发送",
+  csMe: "我",
+  csAgent: "客服",
+  csSessionEnded: "会话已结束",
+  csAgentServing: "客服为您服务",
+  csAgentJoined: "已接入",
+  csConnectFailed: "连接失败",
 };
 
 export { cn };