Rename :poll to :preloadable_poll and :owned_poll to :poll on Status (#10401)

Also, fix some n+1 queries

Resolve #10365

app/serializers/activitypub/note_serializer.rb

@@ -29,7 +29,7 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
   end
 
   def type
-    object.poll ? 'Question' : 'Note'
+    object.preloadable_poll ? 'Question' : 'Note'
   end
 
   def summary
@@ -125,29 +125,29 @@ class ActivityPub::NoteSerializer < ActivityPub::Serializer
   end
 
   def poll_options
-    object.poll.loaded_options
+    object.preloadable_poll.loaded_options
   end
 
   def poll_and_multiple?
-    object.poll&.multiple?
+    object.preloadable_poll&.multiple?
   end
 
   def poll_and_not_multiple?
-    object.poll && !object.poll.multiple?
+    object.preloadable_poll && !object.preloadable_poll.multiple?
   end
 
   def closed
-    object.poll.expires_at.iso8601
+    object.preloadable_poll.expires_at.iso8601
   end
 
   alias end_time closed
 
   def poll_and_expires?
-    object.poll&.expires_at&.present?
+    object.preloadable_poll&.expires_at&.present?
   end
 
   def poll_and_expired?
-    object.poll&.expired?
+    object.preloadable_poll&.expired?
   end
 
   class MediaAttachmentSerializer < ActivityPub::Serializer

app/serializers/activitypub/update_poll_serializer.rb

@@ -6,7 +6,7 @@ class ActivityPub::UpdatePollSerializer < ActivityPub::Serializer
   has_one :object, serializer: ActivityPub::NoteSerializer
 
   def id
-    [ActivityPub::TagManager.instance.uri_for(object), '#updates/', object.poll.updated_at.to_i].join
+    [ActivityPub::TagManager.instance.uri_for(object), '#updates/', object.preloadable_poll.updated_at.to_i].join
   end
 
   def type

app/serializers/rest/status_serializer.rb

@@ -21,7 +21,7 @@ class REST::StatusSerializer < ActiveModel::Serializer
   has_many :emojis, serializer: REST::CustomEmojiSerializer
 
   has_one :preview_card, key: :card, serializer: REST::PreviewCardSerializer
-  has_one :poll, serializer: REST::PollSerializer
+  has_one :preloadable_poll, key: :poll, serializer: REST::PollSerializer
 
   def id
     object.id.to_s