Bug 15511: Fix tabbed display on OPAC patron account summary page

 Bug 15511: Fix tabbed display on OPAC patron account summary page

Some variables were not correctly renamed in a previous patch,
resulting in the fines tab of the OPAC patron summary page
not showing correctly.

To test:
- Go to the OPAC patron account
- Check the display of the Checkouts, Fines and Holds tabs on
  the summary page
- Verify that with the patch, the display is corrected

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Works as advertised

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>