[Docs] Add announcement `Chip` (#4366)

## Description

Adds announcement chip about v3


| Dark | Light |
|--------|-------|
| <img width="590" height="280" alt="image"
src="https://github.com/user-attachments/assets/6281491a-4521-4ccb-b84a-dada0a461604"
/> | <img width="590" height="280" alt="image"
src="https://github.com/user-attachments/assets/8538fc89-f33a-425f-90d0-3f2bbaba396b"
/> |



https://github.com/user-attachments/assets/73184439-9f22-4134-8c9d-f778dd37b82e



## Test plan

Read docs 🤓