Add user-select: none and -webkit-touch-callout: none to app icon to prevent the browser from selecting the image when long-pressing, which interferes with drag-to-move in edit mode on mobile devices. Closes #2970
Add user-select: none and -webkit-touch-callout: none to app icon to prevent the browser from selecting the image when long-pressing, which interferes with drag-to-move in edit mode on mobile devices. Closes #2970