sw: the Assign Styles dialog is not called Insert Database Columns

Change-Id: I96e0ee5fa0c7e45989cee663378d2ea7516fddfe
(cherry picked from commit c2b002ba96a9cd1ffc45281f7ba195063c94a54a)
Reviewed-on: https://gerrit.libreoffice.org/7469
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>
(cherry picked from commit 15b8fb3f9bacf8939a6495dca18831d428d94713)
Reviewed-on: https://gerrit.libreoffice.org/7472
Reviewed-by: Fridrich Strba <fridrich@documentfoundation.org>
Reviewed-by: Andras Timar <andras.timar@collabora.com>