The Trash information contains the list of pages that were deleted. The title Page Title (Space) does not specify the name of the space - it is kind of redundant really.

Change the hardcoded 'Space' tag to instead display the name of the Space $action.space.name

 <tr>
     <th width="80%">
          $action.getText("heading.page.title")
          <span class="smalltext">in space</span>  $action.space.name
       </th>
      <th>$action.getText("heading.operations")</th>
 </tr>