feat: adiciona integração com Speed Insights

Adiciona o pacote @vercel/speed-insights e inclui o componente
SpeedInsights no layout principal da aplicação para melhorar a
análise de desempenho.

app/layout.tsx

@@ -4,6 +4,7 @@ import { main_font } from "@/public/fonts/font_index";
 import type { Metadata } from "next";
 import "./globals.css";
 import { Analytics } from "@vercel/analytics/next";
+import { SpeedInsights } from "@vercel/speed-insights/next";
 
 export const metadata: Metadata = {
   title: "Opensheets",
@@ -29,6 +30,7 @@ export default function RootLayout({
           <Toaster position="top-right" />
         </ThemeProvider>
         <Analytics />
+        <SpeedInsights />
       </body>
     </html>
   );