Prefetch dashboard route on login page

Added useEffect to prefetch the /dashboard route when the login page loads, improving navigation speed after login.

app/auth/login/page.tsx

@@ -1,6 +1,7 @@
 "use client"
 
-import React, { Suspense, lazy } from "react";
+import React, { Suspense, lazy, useEffect } from "react";
+import { useRouter } from "next/navigation";
 
 
 // Use lazy loading for the form component
@@ -30,6 +31,12 @@ function LoginLoading() {
 
 // Main page component
 export default function LoginPage() {
+  const router = useRouter();
+
+  useEffect(() => {
+    router.prefetch("/dashboard");
+  }, [router]);
+
   return (
     <div className="relative flex items-center justify-center min-h-screen overflow-hidden">
       <AuthBackground />