Bug 27525: Replace "wich" with "with" in batch delete template

Bug 27525: Replace "wich" with "with" in batch delete template

This patch corrects two typos: "wich" -> "with."

To test, apply the patch and check the batch delete template
(batchMod-del.tt) and confirm that the two instances of this sentence
are correct:

"Last item for bibliographic record with biblio-level hold on it"

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>