Docs: Replace @returns tag in media/views/attachment/details.js with @return.

Per the documentation standards, `@returns` is an unsupported synonym, `@return` should be used instead.

Follow-up to [46800], [48232].
See #49572.


git-svn-id: https://develop.svn.wordpress.org/trunk@48309 602fd350-edb4-49c9-b593-d223f7449a82

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

@@ -35,7 +35,7 @@ Details = Attachment.extend(/** @lends wp.media.view.Attachment.Details.prototyp
 	 *
 	 * @param {MouseEvent} event A click event.
 	 *
-	 * @returns {void}
+	 * @return {void}
 	 */
 	 copyAttachmentDetailsURLClipboard: function() {
 		var clipboard = new ClipboardJS( '.copy-attachment-url' ),