[eslint-plugin] allow '0' values for length properties

[mellyeliu]

Small patch for unitless '0' strings to allow margin: '0' syntax

https://developer.mozilla.org/en-US/docs/Web/CSS/length#syntax

[github-actions]

workflow: benchmarks/size

Comparison of minified (terser) and compressed (brotli) size results, measured in bytes. Smaller is better.

benchmarks@0.15.3 compare
node ./compare.js /tmp/tmp.IMy4z0i5c6 /tmp/tmp.yI1J85iKbe

Results	Base	Patch	Ratio
@stylexjs/stylex/lib/cjs/stylex.js
· compressed	1,190	1,190	1.00
· minified	3,541	3,541	1.00
@stylexjs/stylex/lib/cjs/inject.js
· compressed	1,223	1,223	1.00
· minified	3,216	3,216	1.00
benchmarks/size/.build/bundle.js
· compressed	496,650	496,650	1.00
· minified	4,847,840	4,847,840	1.00
benchmarks/size/.build/stylex.css
· compressed	99,853	99,853	1.00
· minified	747,541	747,541	1.00

[github-actions]

workflow: benchmarks/perf

Comparison of performance test results, measured in operations per second. Larger is better.

benchmarks@0.15.3 compare
node ./compare.js /tmp/tmp.BpVqzuSxKK /tmp/tmp.zTuhLcut4B

Results	Base	Patch	Ratio
babel-plugin: stylex.create
· basic create	642	641	1.00	-
· complex create	190	195	1.03	+
babel-plugin: stylex.createTheme
· basic themes	452	454	1.00	+
· complex themes	43	43	1.00