The B3 page size settings here uses B5 page size values

Hello @danfickle ,

Thank you for taking time to review this minor issue. Good day to you.

https://github.com/danfickle/openhtmltopdf/blob/ccd29f03ede2aecadac9c39fda95a5fedfb23645/openhtmltopdf-core/src/main/java/com/openhtmltopdf/css/parser/property/PageSize.java#L53