feat: create biome_css_analyze crate

[ematipico]

Summary

This PR adds a new crate biome_css_analyze.

It does contain:

• test suite
• initial infra for new lint rules
• code generation

It doesn't contain:

• documentation generation
• configuration generation

Test Plan

CI to pass

[netlify]

✅ Deploy Preview for biomejs canceled.

Name	Link
🔨 Latest commit	c5817b7
🔍 Latest deploy log	https://app.netlify.com/sites/biomejs/deploys/659bdfe85441360008518a6e

[github-actions]

Parser conformance results on

js/262

Test result	main count	This PR count	Difference
Total	49701	49701	0
Passed	48721	48721	0
Failed	980	980	0
Panics	0	0	0
Coverage	98.03%	98.03%	0.00%

jsx/babel

Test result	main count	This PR count	Difference
Total	40	40	0
Passed	37	37	0
Failed	3	3	0
Panics	0	0	0
Coverage	92.50%	92.50%	0.00%

symbols/microsoft

Test result	main count	This PR count	Difference
Total	6322	6322	0
Passed	2036	2036	0
Failed	4286	4286	0
Panics	0	0	0
Coverage	32.20%	32.20%	0.00%

ts/babel

Test result	main count	This PR count	Difference
Total	662	662	0
Passed	592	592	0
Failed	70	70	0
Panics	0	0	0
Coverage	89.43%	89.43%	0.00%

ts/microsoft

Test result	main count	This PR count	Difference
Total	17646	17646	0
Passed	13452	13452	0
Failed	4192	4192	0
Panics	2	2	0
Coverage	76.23%	76.23%	0.00%

[codspeed-hq]

CodSpeed Performance Report

Merging #1462 will not alter performance

_{Comparing feat/css-analyzer (c5817b7) with main (8ce8f4e)}

Summary

✅ 91 untouched benchmarks

⁉️ 2 dropped benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	feat/css-analyzer	Change
⁉️	typescript.js[cached]	5 s	N/A	N/A
⁉️	typescript.js[uncached]	5.5 s	N/A	N/A