Hide 'next' button if no results

web/views/results.erb

@@ -53,9 +53,11 @@
         </a>
       <% end %>
 
-      <a class="btn btn--small btn--next" href="<%= next_url %>">
-        next page
-      </a>
+      <% unless results.empty? %>
+        <a class="btn btn--small btn--next" href="<%= next_url %>">
+          next page
+        </a>
+      <% end %>
     <% end %>
   </div>
 </div>