AVIF image support

Created by: Hongbo-Miao

Is your proposal related to a problem?

AVIF has landed, create-react-app currently cannot load it.

Here is a good article about AVIF format image: https://jakearchibald.com/2020/avif-has-landed/

Describe the solution you'd like

It would be great to support AVIF format image.

Describe alternatives you've considered

N/A

Additional context

I found these two pull requests to add WebP support in history to see if I can help:

• https://github.com/facebook/create-react-app/pull/458
• https://github.com/facebook/create-react-app/pull/5978

But seems the structure of the create-react-app has huge changes during last a few years. When I search webp, I only found the type related file, and created the pull request for AVIF at https://github.com/facebook/create-react-app/pull/9611.

So still need actual AVIF support.