Move internal analytics review guidelines in docs nav

What does this MR do and why?

Review Guidelines for internal Analytics were moved in gitlab!132995 (merged), this updates the navigation accordingly.

Review app: https://bastirehm-internal-analytics-review-guidelines-location.docs.gitlab-review.app/ee/development/internal_analytics/review_guidelines.html

Merge request acceptance checklist

This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.

• I have evaluated the MR acceptance checklist for this merge request.