Anchored container queries

### Specification

https://drafts.csswg.org/css-anchor-position-2/#anchored-container-queries

### Description

`container-type: anchored` and a new `@container anchored()` query to style elements based on their anchor position

### Documentation

https://developer.chrome.com/blog/anchored-container-queries

### Browser support

[Chrome 143+](https://chromestatus.com/feature/5177580990496768)