Add button to kick off login process

[cwadrupldijjit]

Estimated Hours to Complete: 2

Actual Hours to Complete: 3

Requirements:

This issue is considered done when:

• The methods created in Set up Firebase config #15 are used in the creation of a button
• The button is placed at the bottom of the form that when clicked will fire the method
• The user is serialized and stored in the local storage
• The button is only seen if the user isn't found in local storage
• Add styles so button doesn't look tacky