Add speed insights (#359)

src/main.jsx

@@ -1,6 +1,7 @@
 import ReactDOM from "react-dom/client";
 import { LocaleProvider } from "@douyinfe/semi-ui";
 import { Analytics } from "@vercel/analytics/react";
+import { SpeedInsights } from "@vercel/speed-insights/react";
 import App from "./App.jsx";
 import en_US from "@douyinfe/semi-ui/lib/es/locale/source/en_US";
 import "./index.css";
@@ -11,5 +12,6 @@ root.render(
   <LocaleProvider locale={en_US}>
     <App />
     <Analytics />
+    <SpeedInsights />
   </LocaleProvider>,
 );