Prevent flash of unstled content of the Add NZB button

Before Knockout is active, the number of columns is 6 because of the foreach-loop.

interfaces/Glitter/templates/include_queue.tmpl

@@ -78,7 +78,7 @@
         <!-- ko if: !hasQueue() -->
         <tbody class="no-downloads">
             <tr>
-                <td colspan="5" data-bind="attr: { 'colspan': 5 + extraQueueColumns().length }">
+                <td colspan="6" data-bind="attr: { 'colspan': 5 + extraQueueColumns().length }">
                     <a href="#modal-add-nzb" class="hover-button" data-toggle="modal">
                         <span title="$T('Glitter-dragAndDrop')" data-tooltip="true"><span class="glyphicon glyphicon-plus-sign"></span> $T('Glitter-addNZB')</span>
                     </a>