feat(format/grit): add formatting for lists

[branberry]

Summary

Basic formatting for Grit lists.

#2476

Test Plan

Snapshots demonstrate correct formatting of lists

[codspeed-hq]

CodSpeed Performance Report

Merging #4378 will degrade performances by 6.13%

_{Comparing branberry:main (42da1eb) with main (7627ab0)}

Summary

❌ 1 regressions
✅ 98 untouched benchmarks

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

Benchmarks breakdown

	Benchmark	main	branberry:main	Change
❌	pure_9395922602181450299.css[uncached]	4 ms	4.2 ms	-6.13%

[ematipico]

I suggest adding also long lists that go over the default line width, so you can see how it behaves.

For example, here you used .fill, which doesn't - if memory serves me right - breakdown the lists on multiple lines.

[branberry]

Yes, that's correct. I'll update the tests to go over the default line length, and refactor the code so that it breaks down the list on multiple lines once it reaches a certain length.

Thank you!