* moves login page styles to reusable component
* Redirects successful login to homepage after 3s
* Adds logout form
* Adds logout page
* Adds logout link to homepage
* Adds gravatarURL to logged in user
* Configure API Client to hit /me endpoint
* Fetch user when the app loads
* Configured API Client to make logout requests
* Handle logout flow in redux
* Logout form styles
* Logout user when the logout form is submitted
