Add announcements (#12662)

* Add announcements

Fix #11006

* Add reactions to announcements

* Add admin UI for announcements

* Add unit tests

* Fix issues

- Add `with_dismissed` param to announcements API
- Fix end date not being formatted when time range is given
- Fix announcement delete causing reactions to send streaming updates
- Fix announcements container growing too wide and mascot too small
- Fix `all_day` being settable when no time range is given
- Change text "Update" to "Announcement"

* Fix scheduler unpublishing announcements before they are due

* Fix filter params not being passed to announcements filter

2 files changed, 5 insertions, 1 deletions

diff --git a/app/lib/entity_cache.rb b/app/lib/entity_cache.rb
index 8fff544a054..35a3773d2d8 100644
--- a/app/lib/entity_cache.rb
+++ b/app/lib/entity_cache.rb
@@ -8,7 +8,7 @@ class EntityCache
   MAX_EXPIRATION = 7.days.freeze
 
   def mention(username, domain)
-    Rails.cache.fetch(to_key(:mention, username, domain), expires_in: MAX_EXPIRATION) { Account.select(:username, :domain, :url).find_remote(username, domain) }
+    Rails.cache.fetch(to_key(:mention, username, domain), expires_in: MAX_EXPIRATION) { Account.select(:id, :username, :domain, :url).find_remote(username, domain) }
   end
 
   def emoji(shortcodes, domain)
diff --git a/app/lib/inline_renderer.rb b/app/lib/inline_renderer.rb
index 761a8822dfb..27e334a4de6 100644
--- a/app/lib/inline_renderer.rb
+++ b/app/lib/inline_renderer.rb
@@ -15,6 +15,10 @@ class InlineRenderer
       serializer = REST::NotificationSerializer
     when :conversation
       serializer = REST::ConversationSerializer
+    when :announcement
+      serializer = REST::AnnouncementSerializer
+    when :reaction
+      serializer = REST::ReactionSerializer
     else
       return
     end