/comments: add vote buttons beneath thumbnails on /comments page.

Also fix an N+1 queries problem.

app/views/comments/_index_by_post.html.erb

@@ -3,9 +3,9 @@
     <%= render "post_sets/blank" %>
   <% end %>
 
-  <% @posts.select(&:visible?).each do |post| %>
+  <% @posts.includes(:media_asset, :uploader, :vote_by_current_user, comments: [:creator, :votes]).select(&:visible?).each do |post| %>
     <%= tag.div id: "post_#{post.id}", **PostPreviewComponent.new(post: post).article_attrs("post space-x-4") do %>
-      <%= post_preview(post, show_deleted: true) %>
+      <%= post_preview(post, show_deleted: true, show_votes: true) %>
 
       <div class="flex-1">
         <%= render "comments/partials/index/header", post: post %>

app/views/comments/partials/index/_header.html.erb

@@ -12,10 +12,6 @@
       <strong>Rating</strong>
       <%= post.pretty_rating %>
     </span>
-    <span class="info">
-      <strong>Score</strong>
-      <%= render_post_votes post, current_user: CurrentUser.user %>
-    </span>
   </div>
   <div class="row list-of-tags">
     <strong>Tags</strong>