refactor: drop everything and start again

- too many packages
- packages were too general
- the repo was hard to work with
- sites were too connected to packages - difficult to do stuff after a while

sites/terraform-skoleni.cz/app/page.tsx

@@ -0,0 +1,5 @@
+export default function Page() {
+  return (
+    <>Hello</>
+  );
+}