Insert tips as comments in the YAML snippet

What does this MR do?

Inserts a few hints as code comments in the API Fuzzing configuration YAML snippets generated by the API. This works by looking for predefined tokens and inserting a new line above the first match in the snippet.

Screenshots (strongly suggested)

Before	After

How to test this?

1. In any project, navigate to the API Fuzzing configuration form at /:namespace/:project/-/security/configuration/api_fuzzing.
2. Fill out the form.
3. Click on Generate code snippet.

Does this MR meet the acceptance criteria?

Conformity

• 📋 Does this MR need a changelog?
  • I have included a changelog entry.
  • [-] I have not included a changelog entry because _____.
• Documentation (if required)
• [-] Code review guidelines
• [-] Merge request performance guidelines
• Style guides
• [-] Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
• [-] Tested in all supported browsers
• [-] Informed Infrastructure department of a default or new setting change, if applicable per definition of done

Related to #321201 (closed)