Add Threat Actor Profiles to Threat Events dashboard

[alexmoraru7]

Introduced Threat Actor Profiles in Threat Events dashboard to enhance visibility into threat actors and their methods.

Summary

Screenshots (optional)

Documentation checklist

• Is there a changelog entry (guidelines)? If you don't add one for something awesome and new (however small) — how will our customers find out? Changelogs are automatically posted to RSS feeds, the Discord, and X.
• The change adheres to the documentation style guide.
• If a larger change - such as adding a new page- an issue has been opened in relation to any incorrect or out of date information that this PR fixes.
• Files which have changed name or location have been allocated redirects.

[github-actions]

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern	Owners
/src/content/changelog/	@cloudflare/pm-changelogs, @cloudflare/pcx-technical-writing

[github-actions]

CI run failed: build logs

[korinne]

Approved. Non-blocking, but I feel like a screenshot of the dashboard could go far here.