Also remove Light/Dark Violet variants
Place Magenta into the Standard colors list
and Violet into the Tonal colors list

Change-Id: Id27bb5fe62b7c69af39158680ae07d4f1f2efc95
Reviewed-on: https://gerrit.libreoffice.org/55257Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Heiko Tietze <tietze.heiko@gmail.com>