Chat Message - 3rd Person

[Design Spec](https://www.figma.com/design/YV8fXr4jjEjUqhvRzI0tT2/PatternFly%3A-Chatbot-Design-Framework?node-id=404-17136&t=RP6bjDiAIAIRYhM0-4)

Primary message structure for the external human users, typically support specialists.

Supports:
- [Avatar](https://staging-v6.patternfly.org/components/avatar)
- Name
- Timestamp
- Message contents