Update Security Dashboard Docs

What does this MR do?

This commit updates the security Dashboard docs to represent the changes that have been made in !49479 (merged).

Does this MR meet the acceptance criteria?

Conformity

• [-] Changelog entry
• Documentation (if required)
• [-] Code review guidelines
• [-] Merge request performance guidelines
• [-] Style guides
• [-] Database guides
• [-] Separation of EE specific content