Add threat insights to Threat Events platform

[alexmoraru7]

The threat events platform now includes insights curated by threat intelligence analysts, accessible for relevant parent events. Insights are indicated by a lightning icon in the dashboard and may connect multiple events related to the same threat actor.

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.
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[pedrosousa]

Suggested change

	The threat events platform now has threat insights available for some relevant parent events and threat intelligence analyst users can access these insights for their threat hunting activity.
	The threat events platform now has threat insights available for some relevant parent events. Threat intelligence analyst users can access these insights for their threat hunting activity.