[Internal][Bug][ML UI]: Fix minor navigational issues in the "Getting started with anomaly detection" tutorial

[nastasha-solomon]

Summary

Fixes #4002 by updating:

• Instructions for accessing sample data in ESS and Serverless
• Navigation guidance for accessing the Anomaly Detection Jobs page from the Stack Management menu

Generative AI disclosure

1. Did you use a generative AI (GenAI) tool to assist in creating this contribution?

• Yes
• No

[github-actions]

Vale Linting Results

Summary: 1 suggestion found

💡 Suggestions (1)

File	Line	Rule	Message
explore-analyze/machine-learning/anomaly-detection/ml-getting-started.md	31	Elastic.WordChoice	Consider using 'refer to (if it's a document), view (if it's a UI element)' instead of 'See', unless the term is in the UI.

[github-actions]

🔍 Preview links for changed docs

• explore-analyze/machine-learning/anomaly-detection/ml-getting-started.md