Arch testing for Pest tests

[phh]

I'm having a habit of adding only() to the tests I'm currently working on and sometimes I'm forgetting to remove only() for my tests before comitting my changes. This is somewhat handled in CI, as we use the --ci option, that does not take only() into account. However, this is bad for local development and just in general and should not have been comitted.

Architecture testing is mainly for the App part of the application, but perhaps we could have some test specific methods as well like:

• withoutUsingOnly()
• withoutSkipping()
• withoutTodo()