Add missing newline after var declaration

This is to appease the code style checker.

Author: mattijv

app/code/Magento/Ui/view/base/web/js/lib/core/collection.js

@@ -223,6 +223,7 @@ define([
          */
         regionHasElements: function (name) {
             var region = this.getRegion(name);
+
             return region().length > 0;
         },