fdo#80295 - Mismatched icons in Chart Data Table dialog

Change-Id: I31d9ea145e8c01a0e81507534e2cf6c584174048
Reviewed-on: https://gerrit.libreoffice.org/9844
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>