Need to make sure cleanup section is added to every lab

Make sure each lab has a section at the bottom to instruct users how to clean up all the resources provisioned. There is a shared MDX component in the repo for this.

Inspect the repository's lab documentation and locate the shared MDX cleanup component mentioned in the issue. Check each lab for a cleanup section at the bottom, then verify that the section explains how to remove all provisioned resources; done means every lab includes it consistently.

Written by the indexing model from the issue text.