BREAKING: ship ESM only

[bartveneman]

No description provided.

[codecov]

Bundle Report

Changes will increase total bundle size by 6.66kB (58.85%) ⬆️⚠️, exceeding the configured threshold of 5%.

Bundle name	Size	Change
formatCss-esm	6.66kB	6.66kB (100%) ⬆️⚠️

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (5027574) to head (e09a168).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main      #119   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines          579       579           
=========================================
  Hits           579       579           

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[codspeed-hq]

CodSpeed Performance Report

Merging #119 will degrade performances by 27.45%

_{Comparing esm-only (e09a168) with main (5027574)}

Summary

⚡ 1 improvements
❌ 1 (👁 1) regressions
✅ 2 untouched benchmarks

Benchmarks breakdown

	Benchmark	BASE	HEAD	Change
👁	minify syntax.fm.css (61.6kB)	155.9 ms	214.9 ms	-27.45%
⚡	nerdy.dev.css (70.6kB)	243.3 ms	200.5 ms	+21.35%