Add visibility param to reblog REST API (#9851)

Use async worker for creating reblog notification to improve performance

app/models/status.rb

@@ -70,6 +70,7 @@ class Status < ApplicationRecord
   validates_with StatusLengthValidator
   validates_with DisallowedHashtagsValidator
   validates :reblog, uniqueness: { scope: :account }, if: :reblog?
+  validates :visibility, exclusion: { in: %w(direct limited) }, if: :reblog?
   validates_associated :owned_poll
 
   default_scope { recent }