templates/show-metadata.html: Fix for potential XSS injections

swh/web/templates/includes/show-metadata.html

@@ -21,7 +21,7 @@ See top-level LICENSE file for more information
             <tr>
               <th class="swh-metadata-table-row swh-metadata-table-key">{{ key }}</th>
               <td class="swh-metadata-table-row swh-metadata-table-value">
-                <pre>{{ val | safe | urlize_links_and_mails | safe }}</pre>
+                <pre>{{ val | escape }}</pre>
               </td>
             </tr>
           {% endif %}