Small improvements

I run rubocop and he shows some formatting issues. I changed in the files helper.

And Rails renders automatically when you define empty method actions on controllers.

My first and a small contribution.
I like having the method definitions there when you're actually using the action. Nothing is worse than debugging unfamiliar code only to find there's no reference to what you're looking for. In that case it could be the rails magic doing it, or it could be dynamically defined somewhere else. I prefer to be explicit for that reason.