PWA: https://zesty-marshmallow-3c5e8d.netlify.app
Link: https://tusharkhandelwal8.github.io/To-dos-usecase/
Store your To-do List along with your completed and cancelled tasks. I have also made an extension which gives you the option to delete your task from todos-list along with the option of complete and cancel. It also shows the count of how many task have been completed,cancelled and are in to-dos list.