Bug 28389: Add 'Details' link to refund type payout lines in POS

Bug 28389: Add 'Details' link to refund type payout lines in POS

This patch adds a link to the account-details page for refund type
payout lines displaying on the register details page of cash management.

Test plan
1/ Enable 'UseCashRegisters'
2/ Add some transactions with at least one including a 'Refund'
3/ Look at the transaction history for the current register (Tools >
Cash management > Transaction history for X)
4/ Note the refund line does not contain a link to 'Details'
5/ Apply the patch
6/ The refund line should now have a 'Details' button on the right.
7/ Bonus points, perform a cashup and then search for older transactions
and check the 'Details' button appears in this table too.

Signed-off-by: Lucas Gass <lucas@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>