Enhance layout and project components; improve accessibility and content

- Added BreadcrumbWrapper to the layout for better navigation.
- Updated ProjectsPage to include CardFooter with conditional rendering for project links.
- Improved image alt text for better accessibility in travel and project sections.
- Added new project details and alt text in data.ts for enhanced content clarity.

src/app/not-found.tsx

@@ -0,0 +1,16 @@
+import Link from 'next/link'
+
+export default function NotFound() {
+  return (
+    <div className="flex flex-col items-center justify-center min-h-[calc(100vh-200px)]">
+      <h2 className="text-3xl font-bold mb-4">404 - Not Found</h2>
+      <p className="mb-6">Could not find the requested resource</p>
+      <Link 
+        href="/"
+        className="px-4 py-2 bg-primary text-primary-foreground rounded-md hover:bg-primary/90"
+      >
+        Return Home
+      </Link>
+    </div>
+  )
+}