fdo#87596 Draw tab fill color when selected on the tab bottom

Change-Id: I02bcdf88063d272cb9eb9e89cbee61d30f4f01d6
(cherry picked from commit 2a20bf5105181d51aab40bdd4ce8c09615a0e599)
Reviewed-on: https://gerrit.libreoffice.org/13648
Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>
Tested-by: Miklos Vajna <vmiklos@collabora.co.uk>