fdo#81475 Finalizing new layout of Writer formatting toolbar

Change-Id: I0d65c96d8d0447ab2191c441acfd5bd9ce8015b8
Reviewed-on: https://gerrit.libreoffice.org/11817
Reviewed-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>
Tested-by: Samuel Mehrbrodt <s.mehrbrodt@gmail.com>