Bug 27779: Update 'REFUND' description in the database

Bug 27779: Update 'REFUND' description in the database

This patch simplified the REFUND description from 'Refund applied
to a patrons fine' to simply 'Refund'.. this allows the description to
be combined with debit type descriptions simply to denote what it was
applied against instead of using the generic 'applied to a patrons fine'

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>