Bug 32576: Replace panels with page-sections

Bug 32576: Replace panels with page-sections

This patch replaces the bootstrap panels with the more modern koha
page-section cards layout.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomás Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
(cherry picked from commit 490b9223672914d253c1a5dadc51cab1d941ec39)
Signed-off-by: Matt Blenkinsop <matt.blenkinsop@ptfs-europe.com>