Bug 22445: Custom cover images - opac user (checkout list)

Bug 22445: Custom cover images - opac user (checkout list)

Test plan:
- Check an item out to a patron
- At the OPAC loggin as this patron
On the checkout list you should see the cover image.

Sponsored-by: Orex Digital
Signed-off-by: Hayley Mapley <hayleymapley@catalyst.net.nz>
Signed-off-by: Hugo Agud <hagud@orex.es>
Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Michal Denar <black23@gmail.com>
Signed-off-by: Kyle Hall <kyle@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>