Refactor Verify Flow with NotificationModal

[leoAshu]

🚀 Summary

This PR refactors the Verify flow to improve user experience by introducing a custom NotificationModal for success feedback.

Instead of relying on a small Toast, users now receive a clear, interactable and consistent success notification.

Key updates:

• Designed a custom NotificationModal using the ModalView component.
• Integrated NotificationModal into the Verify flow.
• Replaced prior Toast based success handling with modal-based confirmation.
• Aligns with previous PRs enhancing KYC and OTP verification flows, ensuring a consistent and unified feedback pattern.

🧩 Related Issues / Tasks

N/A

🛠️ Type of Change

• 🐞 Bug fix
• ✨ New feature
• 🧨 Breaking change
• 🔨 Enhancement/Refactor
• 📝 Documentation
• 📜 Other (please describe):

✅ Checklist

• The code is formatted with Prettier (npm run format or npx prettier --write .)
• PR references a linked Issue or Task number
• Tested on both iOS and Android devices/emulators
• No unnecessary logs or commented-out code
• UI changes, if any, have been reviewed visually
• All tests are passing (if applicable)
• Added or updated documentation where necessary

📸 Screenshots / Videos (UI changes only)

N/A

🧪 Test Plan

• Verified success modal displays after completing Verify flow.
• Tested across OTP verification, KYC checks, and phone/email verification paths.
• Ensured modal dismisses properly and no regressions occur in navigation.
• Confirmed consistency in both light and dark modes.