Remove Scheduled Job when DLRS is deactivated

[tlichlyter]

When a DLRS is deactivated, the scheduled job remains.

It would be great if the scheduled job were deleted automatically or if there was a warning with the option to delete the job.

[mkolodner]

This would be super helpful!

[aheber]

This sounds like a great idea. We have some larger scheduled job work planned where this would fit wonderfully!