Added ACL documentation and updated manifests - 2025.04

[n-boshnakov]

What this PR does / why we need it: This PR:

• adds the "Access Control List Extension" topic to the List of Extensions -> Others section
• updates the weights of the topics in the manifests
• updates the manifests
• adds a new _index.md to the "Others" section

Which issue(s) this PR fixes: Fixes #

Special notes for your reviewer:

Release note:

Added "Access Control List Extension" topic to the List of Extensions -> Others section