tdf#75256 - Add new thesaurus/dictionary icon

Reviewed-on: https://gerrit.libreoffice.org/16143Reviewed-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
Tested-by: Adolfo Jayme Barrientos <fitojb@ubuntu.com>
(cherry picked from commit f9bc291f)

Change-Id: Id5d7824026817318960b6403bf0e0a7558fd8c30
Reviewed-on: https://gerrit.libreoffice.org/16153Reviewed-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>
Tested-by: Christian Lohmaier <lohmaier+LibreOffice@googlemail.com>