Users Database

If you are not using LDAP, use this for the `users_database.yml`

users:
  john:
    displayname: "John Doe"
    password: "$argon2id$v=19$m=65536,t=3,p=2$BpLnfgDsc2WD8F2q$o/vzA4myCqZZ36bUGsDY//8mKUYNZZaR0t4MFFSs+iM"
    email: [e-mail]
    groups:
      - admins
      - dev