Txn Insights V1 design

Product Epic: https://www.notion.so/Transaction-Insights-9d6542c851274ecea1591bdb04c247df

@yanrong-chen feel free to add more details with regards to the scope of your design for V1 :-)

## Design Requirements:
- On hold until Nav Redesign Finalization
- Extension prioritizes this higher on their plate than Mobile's; let Extension ship first, collect metrics on how often ppl use this
- There are 3 user stories for the product Epic. One user story "Nickname contracts" would be valuable for Mobile. Design to focus on this user story
- Extension may pick up the development of it -- Omna needs to discuss this with DanM/Kevin