fix(media.js): elementor#27203 Fix image selection for media controll…

…er inside repeater

When using a custom widget with a repeater field that contains a media controller in its items, you
can't set an image for the image field of repeater items. With this fix, the error is fixed and
image selection works again.

fix elementor#27203

assets/dev/js/editor/controls/media.js

@@ -402,7 +402,7 @@ ControlMediaItemView = ControlMultipleBaseItemView.extend( {
 				id: attachment.id,
 				alt: attachment.alt,
 				source: attachment.source,
-				size: this.model.get( 'default' ).size,
+				size: this.model.get( 'default_value' ).size,
 			} );
 
 			if ( this.model.get( 'responsive' ) ) {