FEATURE: Hide user status when user is hiding public profile and presence (#24300)

Users can hide their public profile and presence information by checking 
“Hide my public profile and presence features” on the 
`u/{username}/preferences/interface` page. In that case, we also don't 
want to return user status from the server.

This work has been started in https://github.com/discourse/discourse/pull/23946. 
The current PR fixes all the remaining places in Core.

Note that the actual fix is quite simple – a5802f484d. 
But we had a fair amount of duplication in the code responsible for 
the user status serialization, so I had to dry that up first. The refactoring 
as well as adding some additional tests is the main part of this PR.

app/serializers/current_user_serializer.rb

@@ -3,6 +3,7 @@
 class CurrentUserSerializer < BasicUserSerializer
   include UserTagNotificationsMixin
   include UserSidebarMixin
+  include UserStatusMixin
 
   attributes :name,
              :unread_notifications,
@@ -65,7 +66,6 @@ class CurrentUserSerializer < BasicUserSerializer
              :can_review,
              :draft_count,
              :pending_posts_count,
-             :status,
              :grouped_unread_notifications,
              :display_sidebar_tags,
              :sidebar_tags,
@@ -82,6 +82,11 @@ class CurrentUserSerializer < BasicUserSerializer
 
   has_one :user_option, embed: :object, serializer: CurrentUserOptionSerializer
 
+  def initialize(object, options = {})
+    super
+    options[:include_status] = true
+  end
+
   def sidebar_sections
     SidebarSection
       .public_sections
@@ -304,14 +309,6 @@ class CurrentUserSerializer < BasicUserSerializer
     Draft.has_topic_draft(object)
   end
 
-  def include_status?
-    SiteSetting.enable_user_status && object.has_status?
-  end
-
-  def status
-    UserStatusSerializer.new(object.user_status, root: false)
-  end
-
   def unseen_reviewable_count
     Reviewable.unseen_reviewable_count(object)
   end