Configure i18n and add simplified chinese (#99)

src/main.jsx

@@ -4,11 +4,12 @@ import { Analytics } from "@vercel/analytics/react";
 import App from "./App.jsx";
 import en_US from "@douyinfe/semi-ui/lib/es/locale/source/en_US";
 import "./index.css";
+import "./i18n/i18n.js";
 
 const root = ReactDOM.createRoot(document.getElementById("root"));
 root.render(
   <LocaleProvider locale={en_US}>
     <App />
     <Analytics />
-  </LocaleProvider>
+  </LocaleProvider>,
 );