[8.x] [Observability Onboarding] Display next steps (elastic#197179) (e…

…lastic#198267)

# Backport

This will backport the following commits from `main` to `8.x`:
 - [Observability Onboarding] Display next steps (elastic#197179) (48959e7)

<!--- Backport version: 8.9.8 -->

### Questions ?
Please refer to the [Backport tool
documentation](https://github.com/sqren/backport)

<!--BACKPORT [{"author":{"name":"Thom
Heymann","email":"[email protected]"},"sourceCommit":{"committedDate":"2024-10-24T14:43:01Z","message":"[Observability
Onboarding] Display next steps (elastic#197179)\n\n## Summary\r\n\r\nDisplay
next steps after the auto-detect script completes.\r\n\r\n##
Screenshot\r\n\r\n<img width=\"905\" alt=\"Screenshot 2024-10-22 at 09
30
51\"\r\nsrc=\"https://github.com/user-attachments/assets/85108ea2-510a-46f7-8b79-135be91b586f\">","sha":"48959e769cb29b02e8c49d68fb2c7f9f8c3418d0"},"sourceBranch":"main","suggestedTargetBranches":[],"targetPullRequestStates":[]}]
BACKPORT-->

Co-authored-by: Thom Heymann <[email protected]>
Co-authored-by: Elastic Machine <[email protected]>
Co-authored-by: Mykola Harmash <[email protected]>