Bug 35532: Remove shortcut buttons from flatpickr

Bug 35532: Remove shortcut buttons from flatpickr

It doesn't make sense to have the shortcut buttons in the range picker
for bookings. This patch adds the ability to remove them entirely from
display and uses that option in the bookings modal.

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Nick Clemens <nick@bywatersolutions.com>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>
(cherry picked from commit fa745c3b1d13643e08cacd0cf3a0cb10d25fd8ec)
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>