feat(ui): enhance footer with NutriScan branding and fix database path

- Redesigned Footer.tsx with comprehensive layout including brand section, navigation links, social media icons, and contact info to improve user engagement and brand visibility
- Updated DATABASE_URL in .env to correct Prisma database path for proper configuration and connectivity
- Updated dependencies to support new UI components and ensure compatibility with enhanced features

app/components/ProductCardSkeleton.tsx

@@ -0,0 +1,29 @@
+import { Card, CardContent } from "@/components/ui/card";
+import { Skeleton } from "@/components/ui/skeleton";
+
+export function ProductCardSkeleton() {
+  return (
+    <Card className="overflow-hidden">
+      {/* Imagem Skeleton */}
+      <Skeleton className="h-48 w-full" />
+
+      <CardContent className="p-4">
+        {/* Nome do Produto */}
+        <Skeleton className="h-6 w-full mb-2" />
+        <Skeleton className="h-6 w-3/4 mb-3" />
+
+        {/* Marca */}
+        <Skeleton className="h-4 w-1/2 mb-3" />
+
+        {/* Categorias */}
+        <div className="flex gap-1.5 mb-4">
+          <Skeleton className="h-5 w-16" />
+          <Skeleton className="h-5 w-20" />
+        </div>
+
+        {/* Botão */}
+        <Skeleton className="h-10 w-full" />
+      </CardContent>
+    </Card>
+  );
+}