Refactor `example-app` to standalone

[markostanimirovic]

Information

The example-app project from the NgRx monorepo currently uses modules and should be refactored to standalone APIs.

Documentation page

https://github.com/ngrx/platform/tree/main/projects/example-app

I would be willing to submit a PR to fix this issue

• Yes
• No

[rainerhahnekamp]

Yes, I'd like to do that one. Can you also give me a deadline ;)

[markostanimirovic]

Thanks Rainer! There is no strict deadline, but it would be great if we could do it by the end of this month.

[sheikalthaf]

@rainerhahnekamp PR for this #4487