Review of #2682, Also added parent deletion link on restore

Review of #2682, Also added parent deletion link on restore

On restore, added a link to the parent deletion restore if any exists
on a cascading parent. Added a test to cover this case to ensure its shown.

Also tweaked default empty state message on recycle bin item list to align
with new column count.

Also done a little existing code cleanup including a getUrl helper on
the deletion items.

Related to #2682 & #2594