We have to implement a notification for delete Landing Page draft.

Steps to reproduce:

1. Login to back office.
2. Go to Content / Content Structure.
3. Start creating a new content - Landing page.
4. Click on "Delete draft" button on the left side menu.

Please see attached screenshots.

Comment:

After user is redirected to "Landing Page View mode" at the bottom of the page should be displayed a notification with information that Landing Page draft has been successfully deleted. Please note that in case when user add new Landing Page, the notification is properly displayed.