EPIC: Import wallet created using the metamask snap

[JonRay15]

Story

As a user who has generated a wallet using the snap I want to be able to import that wallet into Browser Wallet So that I dont have to lose my wallet or move funds between keys

Acceptance Criteria

• [x] #691
• [x] #708

Tasks

• [ ] Detailed sketch
• [ ] Visual design
• [ ] Frontend tasks:
  • [ ] Implement UI
  • [ ] Integrate with backend
  • [ ] Write unit tests
• [ ] Backend tasks:
  • [ ] TBC
  • [ ] Write unit tests
• [ ] Write end to end tests
• [ ] Code review
• [ ] Team verify acceptance criteria met
• [ ] Exploratory QA testing
• [ ] Capture bugs and new edge cases in tickets (this one or new TBD)
• [ ] Write automated regression tests for the A/Cs (expanding on A/Cs where possible)
• [ ] Add story and A/Cs to spec doc
• [ ] Review with stakeholders
• [ ] Release

Sketch

Notes

[JonRay15]

This is all done