Add interactions

[kwekubright]

Description:

In this feature, I achieved the following:

• Created methods for setting tasks as complete. ✅
• Added event listener to the checkbox (change). ✅
• Updated items object's value for completed key upon user actions. ✅
• Implement a function for the "Clear all completed" button (used filter() method). ✅
• Stored the updated array of items in local storage, so the user gets the correct list values after the page reloads. ✅

https://user-images.githubusercontent.com/5249414/171685863-7b4a6f88-9d95-450b-93ac-3b52f862c7d5.mov

LIVE DEMO: https://kwekubright.github.io/ToDo-List-App/

[kwekubright]

Thank you @KDlamini