update lazysizes 4.1.4 -> 5.2.0
update lazysizes 4.1.4 -> 5.2.0

SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2,SlovakNationalGallery/web-umenia-2