Module 10, check video suggestion to add the OnChanges lifecycle hook to the ProductListComponent

[duncanhunter]

(added from issue raised in froum)

For the first homework assignment at the end of Module 10, the video says to add the OnChanges lifecycle hook to the ProductListComponent, but I think this is supposed to be added to the ProductEditComponent. I checked the Demo5 folder, and OnChanges was added to the edit component.

Thank you for yet another excellent course.