Add styles to forms

Right now the forms look scattered and unfinished... because they are unfinished. ;)

Give them a more cohesive look with better label/field spacing and font weights. See what Bootstrap has to offer us https://getbootstrap.com/docs/4.0/components/forms/

I'm still not sure about how to indicate "required". There is a `required` label class in place now. I thinkI I'd like to give it a hover attribute to say what it means. It would be a good idea to look into web standards or accessibility standards for this.