Depriciated property found -'onPopInvoked' which would be incompatible with newer version of flutter.

[Shrutim1505]

The project currently uses the deprecated property onPopInvoked, which might be incompatible with the newer versions of Flutter. This may create potential issues with compatibility and maintainability.

The Pull Request addressing this issue has been created and is ready for review.

PR Title: Removed depriciated property onPopInvoked #245
Status: Ready to merge the pull request

Testing: Verified