votes: show votes when hovering over post score.

Make it so you can hover over a post's score to see the list of public
upvotes. Also show the upvote count, the downvote count, and the upvote
ratio.

app/helpers/components_helper.rb

@@ -20,6 +20,10 @@ module ComponentsHelper
     render PostVotesComponent.new(post: post, **options)
   end
 
+  def render_post_votes_tooltip(post, **options)
+    render PostVotesTooltipComponent.new(post: post, **options)
+  end
+
   def render_post_navbar(post, **options)
     render PostNavbarComponent.new(post: post, **options)
   end