update set crop data for image crops

attempting to fix #1194

which seems to be an issue with cropper.js
(fengyuanchen/cropperjs#1057)

and ultimately is likely caused by rounding errors

It seems setting individual crop settings instead
of attempting to set them all in one go fixes it,
at least within Twill

frontend/js/components/Cropper.vue

@@ -181,7 +181,21 @@
       },
       initCrop: function () {
         const crop = this.toNaturalCrop(this.crop)
-        this.cropper.setData(crop)
+        // Mike ([email protected]) --
+        //
+        // it seems due to rounding errors(?) that sometimes
+        // the x position can be reset incorrectly
+        // see: https://github.com/fengyuanchen/cropperjs/issues/1057
+        //
+        // from my testing it seems to be a little inconsistent and unpredictable
+        // I guess you just need for the rounding error to happen
+        // But, it seems setting the properties individually avoids this...
+        //
+        // -- Mike ([email protected])
+        this.cropper.setData({ x: crop.x })
+        this.cropper.setData({ y: crop.y })
+        this.cropper.setData({ width: crop.width })
+        this.cropper.setData({ height: crop.height })
       },
       test: function () {
         const crop = this.toNaturalCrop({ x: 0, y: 0, width: 380, height: 475 })