add high fidelity QR code design

[shamilovtim]

Reason for PR

• Add a high fidelity design for the QR code scanner
• Handle edge cases around scanning (including declined permissions)

https://github.com/TBD54566975/web5-wallet/assets/3495974/eb05e2d7-c531-4d09-8aa2-93e7459d85bb

Implementation

• Follow design in Figma for the most part. Skipped a couple of complicated details.
• Cleaned up Button component to be more readable
• Added a safeSpread object util to make Typescript happy
• Remove back button from connect did selection given deeplinking edge cases
• Add "close" button to connect did selection in order to restart the connect process

Closes #149