Fixes #18518

Updates to the latest version of `chokidar`

x-ref: https://github.com/vercel/next.js/issues/17416

`node-sass` v5 introduced support for Node.js v15, which is not supported by v4. However, Next.js currently errors with
```
Error: Node Sass version 5.0.0 is incompatible with ^4.0.0.
```
when attempting to build with `node-sass` 5.0.0. This error comes from `sass-loader`. They have recently released version 10.0.5 which supports `node-sass` 5.0.0 (PR <https://github.com/webpack-contrib/sass-loader/pull/899>, release <https://github.com/webpack-contrib/sass-loader/releases/tag/v10.0.5>).

This makes sure we don't use es6 syntax when compiling the `web-vitals` package with `ncc` since that breaks IE11 compatibility 

x-ref: https://github.com/vercel/ncc/pull/614

Fixes #17066

This upgrades to ncc@0.25.0 and fixes the previous bugs including:

* ncc not referenced correctly in build
* Babel type errors
* node-fetch, etag, chalk and raw-body dependencies not building with ncc - these have been "un-ncc'd" for now. As they are relatively small dependencies, this doesn't seem too much of an issue and we can follow up in the tracking ncc issue at https://github.com/vercel/ncc/issues/612.
* `yarn dev` issues

Took a lot of bisecting, but the overall diff isn't too bad here in the end.

This fixes the current regression with an ncc revert for now.

I will continue to follow up with the ncc upgrade in https://github.com/vercel/next.js/pull/18860.

This adds inlining for Babel and the Babel plugins used in next.

This is based to the PR at https://github.com/vercel/next.js/pull/18823.

The approach is to make one large bundle and then separate out the individual packages from that in order to avoid duplications.

In the first attempt the Babel bundle size was 10MB... using "resolutions" in the Yarn workspace to reduce the duplicated packages this was brought down to a 2.8MB bundle for Babel and all the used plugins which is exactly the expected file size here.

This will thus add a 2.8MB download size to the next package, but save downloading any babel dependencies separately, removing a large number of package dependencies from the overall install.

Ref https://github.com/browserslist/browserslist/blob/master/CHANGELOG.md

This updates to the latest ncc@0.24.1 release.

Initially I thought chalk needed to be removed to make this work, but it turns out it was a caching issue.

I've also added a cache clear to the rebuild command to avoid these issues hopefully in future.

This adds ncc inlining optimizations for the following dependencies:

* cacache
* schema-utils
* find-cache-dir
* mkdirp
* neo-async
* web-vitals

The slight increase in output in the reports here is due to the variation of the bundled version of web-vitals.

In addition, this moves ast-types to be a devDependencies entry instead of in dependencies as it was before https://github.com/vercel/next.js/pull/14746 as I could not see any production usage (ping @prateekbh). Happy to separate that out into a separate PR if preferred too.

This is a prerequisite to being able to ncc inline the Babel dependencies in next.js.

The removal of preset-modules is based on replacing it with preset-env under `targets: { esmodules: true }`, as per the guidance from the package (https://www.npmjs.com/package/@babel/preset-modules):

> Starting from @babel/preset-env 7.9.0, you can enable the bugfixes: true option to get the same behavior as using @babel/preset-modules, but with support for custom targets. If you need to target browsers with native modules support (like this preset does), you can use targets: { esmodules: true }.

From the above, I'm pretty sure this is entirely a backwards compatible change, apart from the change to the runtime plugin list being visible. Perhaps @developit can confirm this as well.

* Adds React 17 as a peer dependency