Bug 32711: Add biblio details to modal

Bug 32711: Add biblio details to modal

This patch adds biblio details to the self-checkout modal. As part of
this we add 'biblio' to the x-koha-embed option on the public items
endpoint, clone the js-biblio-format include from the staff client
adapting it slightly for OPAC use along the way and also import
escape_str and escapeHtml from staff to opac too.

Signed-off-by: Silvia Meakins <smeakins@eso.org>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>