feat: new receive flow

[jonybur]

Description

Changes the QR/Receive screen flow. Unifies the QR code and the Receive screen. Makes the new screen show up as a standalone screen.

Related issues

Fixes: https://github.com/MetaMask/MetaMask-planning/issues/2384

Manual testing steps

1. Go to each one of the triggers that open up the Receive screen
2. Test that the screen opens, and that it opens on the correct screen.

Screenshots/Recordings

https://github.com/MetaMask/metamask-mobile/assets/11148144/ac6343d3-fc64-4f3c-8d25-9a5c4ced2b06

Before

After

Pre-merge author checklist

• [x] I’ve followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• [x] I've completed the PR template to the best of my ability
• [x] I’ve included tests if applicable
• [x] I’ve documented my code using JSDoc format if applicable
• [x] I’ve applied the right labels on the PR (see labeling guidelines). Not required for external contributors.

Pre-merge reviewer checklist

• [x] I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• [x] I confirm that this PR addresses all acceptance criteria described in the ticket it closes and includes the necessary testing evidence such as recordings and or screenshots.