Getty; BackgridOur collective obsession with nostalgia has peaked because capri pants are having a major fashion comeback. Any lingering doubts about the love-it-or-hate-it item belong firmly in the past — especially now that the cropped silhouette is poised to be one of this summer’s hottest trends. Just look at the high-fashion runways and nearly every It girl’s ‘fit pics.Leading the renaissance is Hailey Bieber, who has basically inherited th…