Feature 1: User Auth

[mwmadsen67]

• [x] Backend: DB, model, controller, views
• [x] Redux Loop: fetch, actions, reducer
• [x] Presentational Components
• [x] Styling
  • [x] Should look similar to real site
  • [x] When errors are displayed, the form adjusts properly
• [x] Smooth, bug free navigation
  • [x] Login errors clears when switching from login form to sign up form (and vice-versa)
  • [x] Errors should display for both /signup and/login.
• [x] Adequate and appropriate seeds
  • [x] Demo Login Works