This PR adds the Final Review page (step 3) to the withdrawal flow. The review page allows users to verify all transaction details before execution, showing the sending and receiving accounts, transaction amount, fees, and providing an optional note field. The UI matches our established design system with the same styling patterns used in steps 1 and 2 of the withdrawal flow.

Related Issue

closes #42

Type of Change

• Bug fix
• New feature
• Refactor
• Documentation update
• Other (please describe)

How Has This Been Tested?

• Unit tests
• Integration tests
• Manual tests
• Other (tested component rendering and navigation flow in the development environment)

Checklist:

• I have read the contributing guidelines.
• I have updated the documentation (if applicable).
• My changes do not break existing functionality.
• I have added tests that cover my changes (if applicable).
• All new and existing tests pass.
• I have included screenshots or GIFs to demonstrate the changes (if applicable).

Screenshots (if applicable)

Additional Notes

1. Implemented the Final Review page based on the approved design mockups
2. Used the WithdrawalSteps component for consistent step indicator display
3. Added transaction summary showing source account, destination wallet, and amount
4. Implemented the visual transaction flow representation with account icons and connecting arrows
5. Added order summary section with amount, fee and total breakdown
6. Included note field for users to add transaction comments
7. Added proper navigation between withdrawal steps and cancel functionality
8. The Execute button completes the withdrawal flow and returns to the dashboard
9. Image paths for the Backstage Boys account avatar and USDT icon are placeholder paths that will be updated in the implementation phase