Adds new layout and styles

adds app bar to display navigation instead of nav bar. we are doing this to make it more uniform on a mobile view.
words changed in idea component
cleanup on layout.js component to remove navbar and add appbar
applying inner padding for roi calculator but this needs to be redesigned
cleanup on subscribe component as users can save first name and last name

at the moment there is no requirement to have a user matching profile to a subscribe profile. however, there must be a link associated with it. we might need to think how we are going to apply roles and permissions if the user is not a valid user. at the moment without a validity it is not possible to view categories and item lists.

earmuff-jam / climate

Adds new layout and styles #31