참고자료

https://codepen.io/miyarin/pen/dwNXrZ?editors=1010 https://codesandbox.io/s/drag-and-drop-file-pu4oy?file=/src/App.js:1657-1781 https://stackoverflow.com/questions/72557334/react-hook-form-and-setvalue-of-file-input https://stackoverflow.com/questions/68009415/react-hook-form-and-input-type-file