Updated mediawiki/extensions
Project: mediawiki/extensions/VisualEditor  97adcc2103a268d1741447151f2dfae7f2dddaf6

Tear down the save dialog and remove it from memory on surface teardown

Otherwise the old save dialog will still be around if the user sets up
another surface (e.g. a second edit), but won't be attached to the DOM.

Bug: 57654
Change-Id: I23c10849a212534bdd0600637d8ad4fa3ebc4fb7