[Autocomplete] Migrate to emotion

[natac13]

• I have followed (at least) the PR section of the contributing guide.

#24405

Have some failing tests due to:

Using first-child instead of first-of-type. Says first-child not save in SSR. Just not sure how you would like this handled.

The other is to do with the icon classes test. hasPopupIcon and hasClearIcon

[mui-pr-bot]

@material-ui/core: parsed: +0.61% , gzip: +0.47%
@material-ui/lab: parsed: +0.69% , gzip: +0.69%

Details of bundle changes

Generated by 🚫 dangerJS against 1cc9ddf

[oliviertassinari]

@natac13 A hard one!