Confirm VR Filtering Permissions for Group and Instance Level

This is how the the VR filtering ability is currently being displayed in the Group and Instance level based on the respective GitLab duo setting.

The changes will take effect after this MR has been merged: Enable VR filter in vulnerability report for Gr... (!167460 - merged).

Permissions Docs:

• Project: https://docs.gitlab.com/ee/user/gitlab_duo/turn_on_off.html#turn-off-for-a-project
• Group: https://docs.gitlab.com/ee/user/gitlab_duo/turn_on_off.html#turn-off-for-a-group
• Instance: https://docs.gitlab.com/ee/user/gitlab_duo/turn_on_off.html#turn-off-for-an-instance

⚠ Note: There is an ongoing discussion regarding what expected behavior at both the Group and Instance levels: &15036 (comment 2142114823) should actually be. While we wait for a final decision on that discussion, for now, we only need to document the current behavior in the handbook for clarity.

Group Vulnerability Report

The Group only has ONE project

Group: it displays the VR filtering ability only when the Group's duo setting is on

Group Setting	Group Vulnerability Report + Project's GitLab Duo on	Group Vulnerability Report + Project's GitLab Duo off
On by default	✅ Yes VR filter	✅ Yes VR filter
Off by default	❌ No VR filter	❌ No VR filter
Never on	❌ No VR filter	❌ No VR filter

Instance Vulnerability Report

The Instance only has ONE project

Instance: it displays the VR filtering ability based on the lowest denominator, meaning that the settings applied at the project level take precedence.

Instance Setting	Instance Vulnerability Report + Project's GitLab Duo on	Instance Vulnerability Report + Project's GitLab Duo off
On by default	✅ Yes VR filter	❌ No VR filter
Off by default	✅ Yes VR filter	❌ No VR filter
Never on	✅ Yes VR filter	❌ No VR filter

Project Vulnerability Report

For reference, this Is how the project vulnerability report behaves based on the setting. It only displays if the GitLab Duo is on.

Setting	Project Vulnerability Report
On	✅ Yes VR filter
Off	❌ No VR filter