As registered at IANA: https://www.iana.org/assignments/media-types/media-types.xhtml

Change-Id: I6d66f2cd1f96e487562a1042583e08a5beefc262
Reviewed-on: https://gerrit.libreoffice.org/69125
Tested-by: Jenkins
Reviewed-by: Samuel Mehrbrodt <Samuel.Mehrbrodt@cib.de>