Bug 33568: Restore filters

Bug 33568: Restore filters

FIXME - If we click 'show filters' the 'columns' list does not contain
all the columns.
We are destroying the DT and the hidden columns are removed from the
dom.

I think there are 2 possible solutions here:
1. don't destroy but adjust the 'dom' parameter of DT (I didn't manage
to make this work correctly, because of the th filters)
2. Move the th definition in the JS init of DT

Signed-off-by: Owen Leonard <oleonard@myacpl.org>
Signed-off-by: Laurence Rault <laurence.rault@biblibre.com>
Signed-off-by: Emily Lamancusa <emily.lamancusa@montgomerycountymd.gov>
Signed-off-by: Tomás Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Katrin Fischer <katrin.fischer@bsz-bw.de>