remove Role entity and set language to pt-BR

spec/models/role_spec.rb

@@ -1,18 +0,0 @@
-# == Schema Information
-#
-# Table name: roles
-#
-#  id         :bigint           not null, primary key
-#  name       :string
-#  created_at :datetime         not null
-#  updated_at :datetime         not null
-#
-# Indexes
-#
-#  index_roles_on_name  (name) UNIQUE
-#
-require 'rails_helper'
-
-RSpec.describe Role, type: :model do
-  pending "add some examples to (or delete) #{__FILE__}"
-end

spec/models/user_spec.rb

@@ -10,6 +10,7 @@
 #  remember_created_at    :datetime
 #  reset_password_sent_at :datetime
 #  reset_password_token   :string
+#  roles                  :string           default([]), is an Array
 #  created_at             :datetime         not null
 #  updated_at             :datetime         not null
 #