feat: add og app (boilerplate)

apps/og/app/page.tsx

@@ -0,0 +1,21 @@
+import Link from "next/link"
+
+const Page = () => {
+  return (
+    <main className="my-auto mx-8 2xl:mx-auto">
+        <h1 className="font-display text-5xl font-medium tracking-tight text-black sm:text-7xl leading-10">
+          Hello 👋
+          <br />
+          You found my OG / Twitter card image generator.
+        </h1>
+        <p className="mt-6 text-3xl tracking-tight text-slate-700">
+          Interested in source code?{" "}
+          <Link className="underline text-slate-800 hover:text-slate-900" href="https://github.com/vojtechmares/websites/tree/main/apps/og">
+            [github.com/vojtechmares/websites/og]
+          </Link>
+        </p>
+    </main>
+  )
+}
+
+export default Page