Add snapshot tests

[Nikoloutsos]

I think it is worth adding some snapshot tests on the views.
That way we can be more confident merging PRs.
Also, we can add a Github action workflow for running the snapshot tests in every pull request.
IIRC github actions are free for open source project ❤️

What do you think? @BastiaanJansen

[BastiaanJansen]

Great idea. I hadn't heard about Snapshot testing. Though I did play around with E2E tests for Swift, but I think Snapshot tests are a better fit!
I am familiar with GitHub Actions and use it in my other OS projects as well.

Would you mind looking into it if you have time?

[Nikoloutsos]

Sure, we can do this 😃