Refactor routes.py for readability

[epwr]

User Story:

As a developer, I want to have a file where I can immediately see all the routes on my screen at once and be able to find the logic behind each end point easily, so that I can rapidly find the endpoint I am interested in.

Out of Scope

[epwr]

Flask (and likely Quartz) has the app.add_url_rule method that should do this.