O seguinte erro apareceu assim que renomeei App.js para App.tsx:
ERROR in src/App.tsx:2:30
TS7016: Could not find a declaration file for module 'uuid'. 'C:/Users/renan/GitHub/react-organo-app/node_modules/uuid/dist/index.js' implicitly has an 'any' type.
Try `npm i --save-dev @types/uuid` if it exists or add a new declaration (.d.ts) file containing `declare module 'uuid';`
1 | import { useState } from 'react';
> 2 | import { v4 as uuidv4 } from 'uuid';
| ^^^^^^
3 | import Banner from './components/Banner/Banner';
4 | import Formulario from './components/Formulario/Formulario';
5 | import Time from './components/Time/Time';