Fix/remove calling private method with send in model (#22951)

* fix(status): remove send usage for private unlink_from_conversations

- make unlink_from_conversations public method
- rename unlink_from_conversations to unlink_from_conversations!
- fix send call on private method in statuses_vacuum and batched_remove_status_service

* fix(feeds_vacuum): replace find_in_batches with in_batches

because active record query results should be a little more efficient than
itterating with map and each. Postgres can grasp such lists of ids much quicker
than ruby can.
Will probably make allmost no difference, but cannot hurt either.

app/models/status.rb

@@ -29,7 +29,7 @@
 #
 
 class Status < ApplicationRecord
-  before_destroy :unlink_from_conversations
+  before_destroy :unlink_from_conversations!
 
   include Discard::Model
   include Paginable
@@ -309,14 +309,14 @@ class Status < ApplicationRecord
   after_create_commit :store_uri, if: :local?
   after_create_commit :update_statistics, if: :local?
 
-  around_create Mastodon::Snowflake::Callbacks
-
   before_validation :prepare_contents, if: :local?
   before_validation :set_reblog
   before_validation :set_visibility
   before_validation :set_conversation
   before_validation :set_local
 
+  around_create Mastodon::Snowflake::Callbacks
+
   after_create :set_poll_id
 
   class << self
@@ -447,6 +447,17 @@ class Status < ApplicationRecord
     update_attribute(:deleted_at, discard_time)
   end
 
+  def unlink_from_conversations!
+    return unless direct_visibility?
+
+    inbox_owners = mentioned_accounts.local
+    inbox_owners += [account] if account.local?
+
+    inbox_owners.each do |inbox_owner|
+      AccountConversation.remove_status(inbox_owner, self)
+    end
+  end
+
   private
 
   def update_status_stat!(attrs)
@@ -524,15 +535,4 @@ class Status < ApplicationRecord
     reblog&.decrement_count!(:reblogs_count) if reblog?
     thread&.decrement_count!(:replies_count) if in_reply_to_id.present? && distributable?
   end
-
-  def unlink_from_conversations
-    return unless direct_visibility?
-
-    inbox_owners = mentioned_accounts.local
-    inbox_owners += [account] if account.local?
-
-    inbox_owners.each do |inbox_owner|
-      AccountConversation.remove_status(inbox_owner, self)
-    end
-  end
 end