Similar to when you're trashing a page or post, you might want to both see what you've deleted and restore them. Right now, for patterns you can't do this and, once something is deleted, it's simply gone. For synced patterns in particular, that's fairly destructive and I think we should consider how best to give folks options here.

This overlaps with the request to disable templates a bit #49640 and the experience of trashed synced patterns in the editor: #52013