Mobile friendly version of ticket view

Refactor the header into own component, so it can be shown at "page top" for the mobile one column view.

apps/link/app/(main)/tickets/[id]/@header/page.tsx

@@ -0,0 +1,12 @@
+import { getTicketAction } from "@/app/_actions/tickets";
+import { TicketHeader } from "../_components/TicketHeader";
+
+type PageProps = {
+  params: {
+    id: string;
+  };
+};
+
+export default function Page({ params: { id } }: PageProps) {
+  return (<TicketHeader id={id} />);
+}