Bug 35523: Fix doubled up quotes in cash register title

Bug 35523: Fix doubled up quotes in cash register title

Updates ''{cash_register}'' to '{cash_register}'

To test:
I believe this is not actually testable, as cash registers
can only be archived and not deleted?

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit d534bad99e92cd903ece796a8a0e56ade1042ba9)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>