fix: 🐛 sockjs-client 报错 global is not defined 导致开发环境无法打开 WebSocket 页面问题修复

closed https://github.com/sockjs/sockjs-client/issues/565

src/typings/socket.d.ts

@@ -0,0 +1,6 @@
+// https://github.com/sockjs/sockjs-client/issues/565
+
+declare module "sockjs-client/dist/sockjs.min.js" {
+  import Client from "sockjs-client";
+  export default Client;
+}