optimize assets again (#17)

pngoptimizer, truepng, pngout, optipng, leanify, pngwolf, pngrewrite, advpng, ect, pingo, deflopt, and defluff

Co-authored-by: unknown <>
Reviewed-on: https://git.lolcat.ca/lolcat/4get/pulls/17
Co-authored-by: pumuckel <pumuckel@no-reply@lolcat.ca>
Co-committed-by: pumuckel <pumuckel@no-reply@lolcat.ca>