Ignite challenge4 Reactjs refactoring classes ts 源码

[x]-src / components / Food / index.jsx; [x]-src / components / Food / styles.js; [x]-src / components / Header / index.jsx; [x]-src / components / Header / styles.js; [x]-src / components / Input / index.jsx; [x]-src / components / Input / styles.js; [x]-src / components / Modal / index.jsx; [x]-src / components / ModalAddFood / index.jsx; [x]-src / components / ModalAddFood / styles.js; [x]-src