Fix #4931: Add popup voter list for comments.

Show the comment's upvote and downvote count when you hover over a
comment's score. For mods, show the list of voters as well.

app/helpers/components_helper.rb

@@ -24,6 +24,10 @@ module ComponentsHelper
     render PostVotesTooltipComponent.new(post: post, **options)
   end
 
+  def render_comment_votes_tooltip(comment, **options)
+    render CommentVotesTooltipComponent.new(comment: comment, **options)
+  end
+
   def render_favorites_tooltip(post, **options)
     render FavoritesTooltipComponent.new(post: post, **options)
   end