Feature: Profile API [#238] (#354)

- api to update name and email
- api to change password
- api to  set profile pic
- fixes update_attribute! deprecation warning
- introducing active storage

spec/factories/users.rb

@@ -18,5 +18,9 @@ FactoryBot.define do
     after(:build) do |user, evaluator|
       user.skip_confirmation! if evaluator.skip_confirmation
     end
+
+    trait :with_avatar do
+      avatar { Rack::Test::UploadedFile.new('spec/assets/avatar.png', 'image/png') }
+    end
   end
 end