Fixed string in Bullets and Numbering and changed sidebar to use the same set of strings.

Change-Id: Ib8a103e203cf66c979216175d4047bca518290ce
Reviewed-on: https://gerrit.libreoffice.org/9492Reviewed-by: Andras Timar <andras.timar@collabora.com>
Tested-by: Andras Timar <andras.timar@collabora.com>