DAST Scanner Profile Library implementation - Iteration 1 - Add documentation

Summary

This issue captures part of the frontend work to create the MVC version of the on-demand scan profiles library. Its main goal is to add the feature documentation.

Resources

• Figma flow
• Parent Issue #232716 (closed)

Implementation Plan

• Add feature description / how to use
• Add screenshots
• Add info about potential feature flags (if applicable)
• Change feature flag to be auto-enabled ?