Firebase setup

1. Create Firebase project

2. Make a web app

3. Create `.env` file and paste all environment variables into it

4. Authentication

   1. Add your desired authentication methods

5. Firestore Database

   1. Add a "Firestore Database"

   2. Set the rules for it

   3. Add a new document called "users"

   4. All user objects must have their UUID copied from accounts already made through Authentication. Add email and role admin to them to give them admin permissions.