chore(js): add js sdk recommendation for server use cases

src/pages/[platform]/build-a-backend/server-side-rendering/index.mdx

@@ -404,3 +404,9 @@ All APIs that support use on the server are exported from the `aws-amplify/<cate
 | Storage | `list` | ✅ |  |
 | Storage | `remove` | ✅ |  |
 | Storage | `copy` | ✅ |  |
+
+<Callout info>
+
+Have a server-side use case that isn't currently supported in Amplify JS? Consider using the [AWS SDK for JavaScript](https://aws.amazon.com/sdk-for-javascript/).
+
+</Callout>