Media: Display an error message in grid view if the attachment could not be deleted.

Previously, the attachment was silently removed from the grid but reappeared after a page reload.

Follow-up to [22869].

Props kapilpaul, costdev, mukesh27, azouamauriac, SergeyBiryukov.
Fixes #55158.

git-svn-id: https://develop.svn.wordpress.org/trunk@52725 602fd350-edb4-49c9-b593-d223f7449a82

src/js/media/views/attachment/details.js

@@ -154,7 +154,13 @@ Details = Attachment.extend(/** @lends wp.media.view.Attachment.Details.prototyp
 		this.getFocusableElements();
 
 		if ( window.confirm( l10n.warnDelete ) ) {
-			this.model.destroy();
+			this.model.destroy( {
+				wait: true,
+				error: function() {
+					window.alert( l10n.errorDeleting );
+				}
+			} );
+
 			this.moveFocus();
 		}
 	},