Country API (react, react router)

This project served as an introduction to a number of important processes in front end web development. It was my first time using a responsive element to filter an array (the search bar and the filter drop down), my first time dynamically creating pages based on API info, and my first time applying a dark mode. With there being so many firsts I'm sure there's a lot a did poorly, so please enjoy my strange code. If there are any glaring issues please let me know.

Thanks!