This update for xournalpp fixes the following issues:

- Add Recommends tex(standalone.tex) instead of Requires:
texlive-latex-bin, so that users can uninstall texlive packages
should they not use this particular feature. The standalone pkg
is required for the feature to work and it pulls in the right
texlive dependencies as Recommends.

This update was imported from the openSUSE:Leap:15.2:Update update project.