Add new settings profile and preferences pages (#672)

* Add new settings profile and preferences pages

* Fix lint errors

app/models/user.rb

@@ -7,6 +7,8 @@ class User < ApplicationRecord
   validates :email, presence: true, uniqueness: true
   normalizes :email, with: ->(email) { email.strip.downcase }
 
+  enum :role, { member: "member", admin: "admin" }, validate: true
+
   generates_token_for :password_reset, expires_in: 15.minutes do
     password_salt&.last(10)
   end