As an author, you have your own recycle bin, in which you see the folders and items that you have deleted.
To open your recycle bin, click on recycle bin at the bottom of the tree.
Result: The overview of folders and items in the trash is shown.
To search for a folder or item in the trash can, click on the search icon in the upper right corner.
To restore a folder or an item to the item, click on the three dots next to the folder or item and click on Restore.
When you restore a folder, all items in that folder will also be restored (as in Windows).