Merge branch 'threecolumn' into shigusegubu-vue3

* threecolumn:
  remove margins from underlay since it causes horizontal scroll on smaller screens
  underlay improvements
  Fix image cropper not closing correctly

src/components/image_cropper/image_cropper.js

@@ -66,7 +66,7 @@ const ImageCropper = {
     }
   },
   methods: {
-    unmounted () {
+    destroy () {
       if (this.cropper) {
         this.cropper.destroy()
       }