Bug 17210: Remove use of onclick from biblio detail sidebar in OPAC

Bug 17210: Remove use of onclick from biblio detail sidebar in OPAC

Four instances of onclick here:
1) Print
2) Save to your lists
3) Add to your cart
4) Remove from cart

To test:
Find a biblio detail page in OPAC and confirm all four events above work
as expected before and after the patch.

Sponsored-by: Catalyst IT
Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>