Test scaffold should use Effect.Class.Console

[justinwoo]

import Effect.Class.Console (log)

pros:

• i can add Aff.launchAff_ without having to delete imports

cons:

• more people need to learn the polymorphisms

[f-f]

I don't really have an opinion on this, if you open a PR it's fine by me (also I think you're the original author of the scaffoldings, so go for it)