feat: update Next.js configuration and dependencies, add Docker support

- Set output mode to "standalone" in next.config.ts
- Update dependencies in package.json:
  - Upgrade @heroui/react to ^2.8.5
  - Upgrade framer-motion to ^12.23.25
  - Upgrade next to 16.0.7
  - Upgrade react and react-dom to 19.2.1
  - Upgrade undici to ^7.16.0
  - Upgrade devDependencies including @biomejs/biome, @tailwindcss/postcss, and typescript
- Modify error handling in API routes to simplify catch blocks
- Refactor NotFound component for cleaner JSX structure
- Update global CSS imports for consistency
- Change tsconfig to use "react-jsx" for JSX and include additional type definitions
- Add GitHub Actions workflow for Docker image build and push
- Create Dockerfile for multi-stage build process
- Add development and production Docker Compose configurations

ai commit message xd

src/app/not-found.tsx

@@ -6,21 +6,19 @@ import Link from "next/link";
 
 export default function NotFound() {
 	return (
-		<>
-			<main className="dark:bg-[#121212] text-foreground bg-background py-5">
-				<div className="flex min-h-screen flex-col items-center justify-center">
-					<h1 className="text-7xl font-bold text-blue-400">404</h1>
-					<div className="mt-5 mb-3 text-center">
-						<p className="text-2xl font-semibold text-gray-600">
-							Az keresett oldal nem található.
-						</p>
-						<Link href="/" className="mt-8 inline-block">
-							<Button color="primary">Vissza a főoldalra</Button>
-						</Link>
-					</div>
+		<main className="dark:bg-[#121212] text-foreground bg-background py-5">
+			<div className="flex min-h-screen flex-col items-center justify-center">
+				<h1 className="text-7xl font-bold text-blue-400">404</h1>
+				<div className="mt-5 mb-3 text-center">
+					<p className="text-2xl font-semibold text-gray-600">
+						Az keresett oldal nem található.
+					</p>
+					<Link href="/" className="mt-8 inline-block">
+						<Button color="primary">Vissza a főoldalra</Button>
+					</Link>
 				</div>
-				<Footer />
-			</main>
-		</>
+			</div>
+			<Footer />
+		</main>
 	);
 }