files with unicode characters are not exported

[leonstafford]

needs a bit more testing, but user submitted issue can be seen with a PDF linked in the source as such:

<a href="/contents/data/2018/06/2018MayQUIROPRÁCTICA_Y_BIENESTAR.pdf" data-elementor-open-lightbox="" target="_blank">

Which encodes to https://quiropractica.org/contents/data/2018/06/2018MayQUIROPR%C3%81CTICA_Y_BIENESTAR.pdf

[IntegralMedia01]

same happening to thai characters inside folder and urls