Implement syntax improvements for media queries from level 4 specification

[Florian Rivoal]

CSS Media Quries Level 4 bring in a bunch of syntactic improvements. They make media queries much more readable and maintainable.

https://drafts.csswg.org/mediaqueries-4/#mq-syntax

Here's an example:

Before:

@media (min-width: 20em), not all and (min-height: 40em) {
  @media not all and (pointer: none) {
    …
  }
}

After:

@media ((width >= 20em) or (height < 40em)) and (pointer) {
  …
}

[Radar WebKit Bug Importer]

<rdar://problem/35829622>

[Vadim Makeev]

2020 state of the feature:

1. It’s implemented in Firefox
2. There’s open issue in Chromium https://bugs.chromium.org/p/chromium/issues/detail?id=1034465
3. There’s PostCSS plugin to make it work after the build step https://github.com/postcss/postcss-media-minmax

[yisibl]

The range syntax has been released in Chrome 104[1], and @container in Safari 16 also supports range syntax.

[1]: https://chromestatus.com/feature/5203042742829056

[Antti Koivisto]

This is now implemented.

[Antti Koivisto]

*** Bug 167031 has been marked as a duplicate of this bug. ***