annotate models (#2697)

* add annotate to Gemfile

* rails g annotate:install

* configure annotate_models

* add schema info to models

* fix rubocop to add frozen_string_literal

app/models/media_attachment.rb

@@ -1,4 +1,22 @@
 # frozen_string_literal: true
+# == Schema Information
+#
+# Table name: media_attachments
+#
+#  id                :integer          not null, primary key
+#  status_id         :integer
+#  file_file_name    :string
+#  file_content_type :string
+#  file_file_size    :integer
+#  file_updated_at   :datetime
+#  remote_url        :string           default(""), not null
+#  account_id        :integer
+#  created_at        :datetime         not null
+#  updated_at        :datetime         not null
+#  shortcode         :string
+#  type              :integer          default("image"), not null
+#  file_meta         :json
+#
 
 class MediaAttachment < ApplicationRecord
   self.inheritance_column = nil