Minor corrections to counter rendering.

Unit tests & bug fixes for counter-renderers.

Draft @counter-style support, with sample CSS.

Fixes for broader dependency bounds.

Merge branch 'main' of git.adrian.geek.nz:/srv/git/haskell-stylist into main

Merge branch 'main' of git.adrian.geek.nz:/srv/git/haskell-stylist into main

Fix breaking dependency.

New releases of all hackages! + code tidies.

Revamp XML-Conduit-Stylist API to avoid hard-dependency on Haskell Stylist.

Add utils for implementing :target-within, ensure unlayered styles take precedance.

Fix @layer to play nicely with the conditional at-rules.

If you're not using that, its still integrated into core.
Since the @layer rules are stripped by ConditionalStyles this shouldn't make a difference.

Integrate @layer support into core engine!

Parse @layer rules.

Tweak priority to be a list for the sake of cascadeLayers.

Remove Stylist-Traits APIs from Stylist Core, leaving backwards-compatible stubs.

Fix build failure against new enough versions of 'text'.

Allow callers to define psuedoclasses via callback.

Drop legacy FIXME regarding media query ratios.

Add support for `@document regexp()`..

Treat ratios as fractional numbers.

I'm having trouble consulting the spec, but judging by sample CSS this looks right.