Add Novu support for notifications

[kuizuo]

Is your feature request related to a problem? Please describe. Currently, the notification service relies on Knock, while Novu is a more flexible and open source alternative.

Describe the solution you’d like Integrate Novu as a notification service and write migrations docs to switch Novu.

Describe alternatives you’ve considered Novu stands out due to its open-source nature and extensive support for various notification channels.

[haydenbleasel]

Great idea! Open to a Migration Guide for this.

[Clement-coder]

Hi

I'd love to help integrate Novu as the new notification service and also write clear migration docs to help others switch from Knock. I'm excited about working with open-source tools like Novu, and this is a great opportunity to improve flexibility and contribute something useful to the community. Please assign this to me

[haydenbleasel]

@Clement-coder Of course! We welcome a PR 🙏