Bug 24061: Close after timeout if onafterprint no supported

Not supported on Chrome < 63
https://www.w3schools.com/tags/ev_onafterprint.asp

Signed-off-by: Gabriel DeCarufel <gabriel@inlibro.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

koha-tmpl/opac-tmpl/bootstrap/en/modules/opac-shelves.tt

@@ -984,6 +984,7 @@ $(function() {
         window.onafterprint = function () {
             window.close();
         }
+        setTimeout('window.close()', 1000); // Hack for Chrome < 63
     [% END %]
 
     AdjustRemark();