before installing these libraries `npm run dev` wouldn't work. I kept getting the following error.
```
ready - started server on 0.0.0.0:3000, url: http://localhost:3000
error - ./node_modules/@mui/styled-engine/index.js:6:0
Module not found: Can't resolve '@emotion/styled'
Import trace for requested module:
./node_modules/@mui/system/esm/index.js
./node_modules/@mui/material/styles/index.js
./node_modules/@mui/material/index.js
./components/ContextProvider.tsx
./pages/_app.tsx
https://nextjs.org/docs/messages/module-not-found
wait - compiling /_error (client and server)...
```
Chad