List users who haven't voted

Closes #3

views/votes_show_closed.erb

@@ -175,7 +175,7 @@
       <% end %>
     </tr>
   </thead>
-  <% @vote.ratings.collect { |rating| rating.user }.uniq.sort_by { |user| user.email }.each do |user| %>
+  <% all_users_sorted.each do |user| %>
   <tr>
     <td><%= user.email %></td>
     <% @vote.candidates.each do |candidate| %>
@@ -183,6 +183,10 @@
         <td class="h5">
           <%= erb :rating_badge, :locals => { :value => settings.values.select { |e| e[:id] == rating.value }.first } %>
         </td>
+      <% else %>
+        <td class="h5">
+          <span class="badge bg-secondary"><%= _("Not voted") %></span>
+        </td>
       <% end %>
     <% end %>
   </tr>