Require confirmation before deleting a Lesson in Rise

If someone accidentally clicks the Delete icon for a Lesson in Rise, it's gone. Oh, sure, they could click the Undo message, but only if they realize what they've done, they know that the Undo message will appear, and they move to click it within 12 seconds.

The community is filled with folks asking if there's a way to recover a deleted lesson—and getting the frustrating answer of "no." 

The solution seems obvious: There should be a dialog window asking the user to confirm or cancel the deletion.

That goes for any action that has such a high impact.