Courtesy of Versace, Old NavyIf there’s anything fashion editors can’t resist, it’s a designer collab. Apart from setting calendar alerts, we’re already pre-shopping, pre-styling, and pre-justifying would-be purchases way before the collections even drop. And for good reason. These collabs, typically executed with mass retailers, offer designers’ talents with a more accessible price point. (In fashion math, that means some pieces are basically f…