Add a new preference to always hide all media (#8569)

app/models/user.rb

@@ -95,7 +95,7 @@ class User < ApplicationRecord
   has_many :session_activations, dependent: :destroy
 
   delegate :auto_play_gif, :default_sensitive, :unfollow_modal, :boost_modal, :delete_modal,
-           :reduce_motion, :system_font_ui, :noindex, :theme, :display_sensitive_media, :hide_network,
+           :reduce_motion, :system_font_ui, :noindex, :theme, :display_media, :hide_network,
            :expand_spoilers, :default_language, to: :settings, prefix: :setting, allow_nil: false
 
   attr_reader :invite_code
@@ -316,6 +316,14 @@ class User < ApplicationRecord
     super
   end
 
+  def show_all_media?
+    setting_display_media == 'show_all'
+  end
+
+  def hide_all_media?
+    setting_display_media == 'hide_all'
+  end
+
   protected
 
   def send_devise_notification(notification, *args)