Add missing copyright header

[necolas]

No description provided.

[github-actions]

workflow: benchmarks/size

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

Results	Base	Patch	Ratio
react-strict-dom/dist/dom/index.js
· compressed	2,515	2,515	1.00
· minified	8,688	8,688	1.00
react-strict-dom/dist/dom/runtime.js
· compressed	855	855	1.00
· minified	2,435	2,435	1.00
react-strict-dom/dist/native/index.js
· compressed	15,834	15,834	1.00
· minified	59,133	59,133	1.00

[github-actions]

workflow: benchmarks/perf (native)

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

Results	Base	Patch	Ratio
css.create
· small	1,145,447	1,175,579	1.03	+
· small with units	448,035	448,936	1.00	+
· small with variables	682,685	694,061	1.02	+
· several small	329,018	329,297	1.00	+
· large	213,962	215,322	1.01	+
· large with polyfills	147,731	150,744	1.02	+
· complex	101,432	102,622	1.01	+
· unsupported	223,757	220,609	0.99	-
css.createTheme
· simple theme	222,776	224,580	1.01	+
· polyfill theme	213,594	212,873	1.00	-
css.props
· small	242,062	245,739	1.02	+
· small with units	192,034	192,674	1.00	+
· small with variables	105,824	106,253	1.00	+
· small with variables of units	75,956	75,403	0.99	-
· large	102,531	105,067	1.02	+
· large with polyfills	37,589	37,628	1.00	+
· complex	24,110	24,046	1.00	-
· unsupported	148,750	154,501	1.04	+
· simple merge	164,450	164,861	1.00	+
· wide merge	18,226	18,225	1.00	-
· deep merge	17,794	17,750	1.00	-
· themed merge	31,895	32,145	1.01	+