Add Expo and Next examples apps

[necolas]

• Rename apps/website to packages/website
  • The apps directory is going to be for e2e examples. The website can be a private package.
• Rename apps/examples to apps/platform-tests
  • This app will function a bit like RNTester does for React Native. A place to collect test cases for visual regressions.
• Add example Expo app
  • This app will function as a demo app for setup with Expo.
• Add example nextjs app
  • This app will function as a demo app for setup with Next.
  • Based on a clone of https://github.com/javascripter/next-react-strict-dom-example
• Add examples of default-with-fork components
  • This package will function both as a test for installing a 3P RSD package in Expo/Next, and as a place to share UI code for consistency between the Expo/Next demo apps. It contains platform-specific file forks that Expo/Next should resolve correctly.

cc @MoOx @javascripter

[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/web/index.js
· compressed	2,490	2,490	1.00
· minified	8,653	8,653	1.00
react-strict-dom/dist/web/runtime.js
· compressed	855	855	1.00
· minified	2,435	2,435	1.00
react-strict-dom/dist/native/index.js
· compressed	16,195	16,195	1.00
· minified	62,798	62,798	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	1,136,015	1,123,196	0.99	-
· small with units	481,654	494,735	1.03	+
· small with variables	665,989	665,119	1.00	-
· several small	346,612	350,868	1.01	+
· large	201,026	198,969	0.99	-
· large with polyfills	148,283	146,095	0.99	-
· complex	102,594	101,282	0.99	-
· unsupported	211,526	208,802	0.99	-
css.createTheme
· simple theme	222,929	222,644	1.00	-
· polyfill theme	209,703	210,410	1.00	+
css.props
· small	227,912	222,520	0.98	-
· small with units	187,916	186,677	0.99	-
· small with variables	112,895	112,172	0.99	-
· small with variables of units	82,524	82,313	1.00	-
· large	96,596	94,805	0.98	-
· large with polyfills	38,551	38,318	0.99	-
· complex	22,437	22,242	0.99	-
· unsupported	137,932	137,238	0.99	-
· simple merge	158,106	157,344	1.00	-
· wide merge	17,085	17,052	1.00	-
· deep merge	16,827	16,606	0.99	-
· themed merge	32,539	31,764	0.98	-

[necolas]

I love how good the Expo default tooling setup is.

[EvanBacon]

In Expo SDK 54, we now run autoprefixer automatically using lightningcss which parses all of our CSS.

[byCedric]

In SDK 54, @babel/core is also not required anymore. It was a leftover of some weirdness around Metro resolution that we now solved in a better way.

[necolas]

#396 updates the apps to Expo SDK 54