Add preference to always display sensitive media (#6448)

config/locales/simple_form.en.yml

@@ -45,6 +45,7 @@ en:
         setting_default_privacy: Post privacy
         setting_default_sensitive: Always mark media as sensitive
         setting_delete_modal: Show confirmation dialog before deleting a toot
+        setting_display_sensitive_media: Always show media marked as sensitive
         setting_noindex: Opt-out of search engine indexing
         setting_reduce_motion: Reduce motion in animations
         setting_system_font_ui: Use system's default font

config/settings.yml

@@ -24,6 +24,7 @@ defaults: &defaults
   boost_modal: false
   delete_modal: true
   auto_play_gif: false
+  display_sensitive_media: false
   reduce_motion: false
   system_font_ui: false
   noindex: false