Todo app made with React, styled-components, react-beautiful-dnd

Isn't it too much to use React for such a small application, and if I used vanilla JavaScript, how much more complicated would it be? Is it ok that I used a third-party library to implement Drag and Drop ? maybe my colors are different from style-guide, because it's hard for me to see the difference in these shades of colors I think my project structure is a mess, what's the best way to structure files in a React project? Any feedback is appreciated.