Bug 28854: (follow-up) Restore block styling on bundled span

Bug 28854: (follow-up) Restore block styling on bundled span

This patch restores a css rule that we lost during rebases that makes
the 'bundled' span that appears for bundled items on their respective
details pages so that the 'In bundle: ' text in the status field of the
table appears beneath the 'Not for loan (Added to bundle)' text.

Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>