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

components/ui/skeleton.tsx

@@ -0,0 +1,15 @@
+import { cn } from "@/lib/utils"
+
+function Skeleton({
+  className,
+  ...props
+}: React.HTMLAttributes<HTMLDivElement>) {
+  return (
+    <div
+      className={cn("animate-pulse rounded-md bg-primary/10", className)}
+      {...props}
+    />
+  )
+}
+
+export { Skeleton }