Authenticating users with Firebase and Nuxt SSR

Relevant directories:

• store/index.js

  nuxtServerInit checks for the cookie, and sets user to store on server.

• store/users/index.js

  Where login action happens and JWT cookie from Firebase is set.

• middleware/authenticated.js

  Where routes are authenticated and redirects happen if !user.

• pages/index.vue

  Where the login form resides.