Refactor website to use shadcn components

frontend/app/contact/page.tsx

@@ -1,5 +1,12 @@
 import React from 'react';
 import Contact from "@/components/Contact/Contact";
+import type {Metadata} from "next";
+
+export async function generateMetadata(): Promise<Metadata> {
+    return {
+        title: "Kontakt | Rhein Software",
+    };
+}
 
 const ContactPage = () => {
     return (