* Refactor: Inbox store, remove inboxes from sidebar
* Add a new page for inbox settings
* Show inboxes on sidebar
* Add inbox_members API
* Disable similar-code check
* Fix codeclimate scss issues
* Add widget_color update API and actions
* Add specs for inbox store
* Fix Facebook auth flow
* Fix agent loading, inbox name
* Add Conversation factory with dependent factories
* Include FactoryBot methods in rspec config
* Add unit tests for public methods of Conversation model
* Move Current model into a separate file in lib folder
* Disable Metrics/BlockLength rule for db/migrate and spec folders
* Get rid of global $dispatcher variable
* Create Message#unread_since scope
* Refactor callback methods in Conversation model
* Create Conversations::EventDataPresenter
* Add translation keys for activity messages
* Add pry-rails gem
* Refactor Conversation#notify_status_change
* Add mock_redis for test env