add the search function to website

pages/_app.tsx

@@ -4,13 +4,16 @@ import { SpeedInsights } from "@vercel/speed-insights/next";
 import "katex/dist/katex.min.css";
 import { ThemeProvider } from "next-themes";
 import type { AppProps } from "next/app";
-
+import { QueryClient, QueryClientProvider } from "react-query";
+const queryClient = new QueryClient();
 export default function App({ Component, pageProps }: AppProps) {
   return (
-    <ThemeProvider attribute="class" enableColorScheme enableSystem={false}>
-      <Analytics />
-      <SpeedInsights />
-      <Component {...pageProps} />
-    </ThemeProvider>
+    <QueryClientProvider client={queryClient}>
+      <ThemeProvider attribute="class" enableColorScheme enableSystem={false}>
+        <Analytics />
+        <SpeedInsights />
+        <Component {...pageProps} />
+      </ThemeProvider>
+    </QueryClientProvider>
   );
 }