Todo-app Solution

My second intermediate-level challenge, the classic todo app that everybody has to do once. I learned how to do drag and drop, dark and light mode from completing this challenge. Out of my expectation, Drag and drop is actually easier than Dark and Light mode. I struggled a lot when doing dark and light mode simply because I could make index.html body goes dark, eventually I had to rely on Dom manipulation. I always avoid manipulating Dom directly and rely on using state, but it's kinda necessary in this challenge.

By the way, does anybody know how to make the app lock and not sway in mobile mode? I make the solution responsive to mobile size, but it kinda moves left and right when I try to move it on purpose.

I appreciate all feedbacks and comments, thank you.