Responsive implementation using downshift, react-window, framer-motion

I implemented downshift for the first time and it was a lot of fun. I learned how to implement a very powerful search combobox that is flavored with a cool animation thanks to framer-motion. I had to implement react-window along with it to avoid the tremendous cluttering that so many items can cause, which leverages a powerful performance (react-window is in the search combobox and the mobile version of the home layout only). I could leverage the countries API to decrease the overall bundle size but I just didn't. Perhaps I should and will in the future. All in all, I enjoyed this challenge! Feel free to give any kind of feedback.