docs(infr): add info about model import duration (#5005)

* docs(infr): add info about model import duration

* feat(infr): update wording

* Update pages/managed-inference/how-to/import-custom-model.mdx

Co-authored-by: Néda <[email protected]>

---------

Co-authored-by: Néda <[email protected]>

Author: bene2k1

pages/managed-inference/how-to/import-custom-model.mdx

@@ -47,5 +47,9 @@ Scaleway provides a selection of common models for deployment from the Scaleway
     - Quantization options.
     - Estimated cost.
    Once checked, click **Begin import** to finalize the process.
+   <Message type="note">
+      Importing a model may take some time, depending on its size. Once the import is complete, the model will appear in the model library, and you will be able to use it for deployment.
+   </Message>
+
+Your imported model will now appear in the model library and you can [deploy it on Managed Inference](/managed-inference/how-to/create-deployment/).
 
-Your imported model will now appear in the model library. You can proceed to [deploy your model on Managed Inference](/managed-inference/how-to/create-deployment/).