Add docs for security training

What does this MR do and why?

This MR adds the documentation for the "security training feature"

• Issue: #346071 (closed)
• Epic: &6176 (closed)

Goal of documentation

1. The documentation wants to capture how a user can enable/disable this feature.
2. When the feature is enabled, it will display the provider training link if applicable. (Currently, we only support type CWE identifiers, more identifiers will be supported in future issues > #349606 (closed))

Enable Provider	Disable Provider
enable-provider	disable-provider
training section is display if supported identifier is available	no training section is displayed

More info

Here's how the vulnerability detail page and modal will look depending on the circumstances:

Training not found	Training found	Training disabled

Screenshots or screen recordings

These are strongly recommended to assist reviewers and reduce the time to merge your change.

How to set up and validate locally

Numbered steps to set up and validate the change are strongly suggested.

MR 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 MR.