Replace total votes to cached_votes_score on debates

This show votes_score as result of votes_up minus votes_down

app/models/debate.rb

@@ -88,6 +88,10 @@ class Debate < ActiveRecord::Base
     cached_votes_total
   end
 
+  def votes_score
+    cached_votes_score
+  end
+
   def total_anonymous_votes
     cached_anonymous_votes_total
   end

app/views/debates/_votes.html.erb

@@ -40,7 +40,7 @@
   </div>
 
   <span class="total-votes">
-    <%= t("debates.debate.votes", count: debate.total_votes) %>
+    <%= t("debates.debate.votes", count: debate.votes_score) %>
   </span>
 
   <% if user_signed_in? && current_user.organization? %>