Default devices for saving workflow figures

[pchelle]

While reading on the new ggplot2 version, I came across this article: https://www.tidyverse.org/blog/2021/02/modern-text-features/

Currently, the ospsuite.reportingengine package saves its figures using the default device argument provided by ggsave that may not be optimal.
My understanding is that these device could be improved by using ragg for png, tiff and jpeg images and cairo for pdf and postscript images.

@Yuri05 , thoughts ?