Login Flow - Implement Auth with Discord

[leighton-tidwell]

This issue depends on:

• [x] #11
• [x] #5
• [ ] #13

Implement login capability with discord.

Acceptance Criteria

• [ ] Upon logging in, the user should be presented with the Select Server screen.
• [ ] The page should receive the users login status and data via server side props.
• [ ] The header should be in the auth variant.