pundit: convert artist commentaries to pundit.

app/policies/artist_commentary_policy.rb

@@ -0,0 +1,20 @@
+class ArtistCommentaryPolicy < ApplicationPolicy
+  def create_or_update?
+    unbanned?
+  end
+
+  def revert?
+    unbanned?
+  end
+
+  def permitted_attributes
+    %i[
+      original_description original_title
+      translated_description translated_title
+      remove_commentary_tag remove_commentary_request_tag
+      remove_commentary_check_tag remove_partial_commentary_tag
+      add_commentary_tag add_commentary_request_tag
+      add_commentary_check_tag add_partial_commentary_tag
+    ]
+  end
+end