Add direct routes to specific Wallet Onboarding pages

[josheleonard]

Description

Add routes to directly open a specific Wallet onboarding step, so that the user can continue where they left off.

Expected result:

All wallet onboarding steps of wallet/crypto/onboarding should have a corresponding URL

• Create password: /crypto/onboarding/create-password
• Backup wallet: /crypto/onboarding/backup-wallet
• Onboarding import from MetaMask = /crypto/onboarding/import-metamask-wallet
• Onboarding import from legacy crypto wallet = /crypto/onboarding/import-legacy-wallet

Test Plan

• Reset Brave Wallet

• Click on the wallet Icon

• Click Learn More in the panel popup

• Verify that the Onboarding welcome screen was opened

  • The browser URL should be: brave://wallet/crypto/onboarding

• Continue to create wallet step

  • The URL should be: brave://wallet/crypto/onboarding/create-password

• Continue to backup wallet step

  • The URL Should be: brave://wallet/crypto/onboarding/backup-wallet

• Reset Brave Wallet

• Install and setup MetaMask extension

• Click on the wallet Icon

• Click Learn More in the panel popup

• Verify that the Onboarding welcome screen was opened

  • The browser URL should be: brave://wallet/crypto/onboarding

• Continue to restore from MetaMask step

  • URL should be brave://wallet/crypto/onboarding/import-metamask-wallet

• Reset Brave Wallet

• Install legacy crypto wallet extension

• Click on the wallet Icon

• Click Learn More in the panel popup

• Verify that the Onboarding welcome screen was opened

  • The browser URL should be: brave://wallet/crypto/onboarding

• Continue to create wallet step

  • URL should be brave://wallet/crypto/onboarding/import-legacy-wallet

[srirambv]

Brave	1.41.93 Chromium: 103.0.5060.114 (Official Build) (64-bit)
Revision	a1c2360c5b02a6d4d6ab33796ad8a268a6128226-refs/branch-heads/5060@{#1124}
OS	☑️ Linux	☑️ Windows 11 Version 21H2 (Build 22000.708)	☑️ macOS Version 12.0.1 (Build 21C52)
Verified steps from issue Verified direct routes to Onboarding and Importing works fine
	22589-Linux.mp4	22589-Windows.mp4	22589-macOS.mov