refactor: remove unused components and next steps section from index.mdx

Author: pascalinthecloud

docs/src/content/docs/index.mdx

@@ -14,23 +14,4 @@ hero:
       link: https://github.com/pascalinthecloud/terraform-proxmox-talos-cluster
       icon: external
       variant: minimal
----
-
-import { Card, CardGrid } from '@astrojs/starlight/components';
-
-## Next steps
-
-<CardGrid stagger>
-	<Card title="Update content" icon="pencil">
-		Edit `src/content/docs/index.mdx` to see this page change.
-	</Card>
-	<Card title="Add new content" icon="add-document">
-		Add Markdown or MDX files to `src/content/docs` to create new pages.
-	</Card>
-	<Card title="Configure your site" icon="setting">
-		Edit your `sidebar` and other config in `astro.config.mjs`.
-	</Card>
-	<Card title="Read the docs" icon="open-book">
-		Learn more in [the Starlight Docs](https://starlight.astro.build/).
-	</Card>
-</CardGrid>
+---