Description

This PR updates SolanaNewFeature to use AddNewAccount

Changes:

1. SolanaNewFeature to navigate to AddNewAccount when create account has been pressed.

Related issues

Fixes: https://consensyssoftware.atlassian.net/browse/MMMULTISRP-136?atlOrigin=eyJpIjoiOTc3OTg4ZmQwM2NmNGMyZWE0MDE2MWQ5YzIyM2ZjYzkiLCJwIjoiaiJ9

Manual testing steps

Using the beta build

1. Go through the onboarding
2. See the SolanaNewFeature modal
3. Click create account and see the modal popup.

Screenshots/Recordings

Before

After

Pre-merge author checklist

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

Pre-merge reviewer checklist

• I've manually tested the PR (e.g. pull and build branch, run the app, test code being changed).
• 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.