@mui/system 6.0.0-alpha.14 on Node.js Yarn

A big thanks to the 12 contributors who made this release possible. Here are some highlights ✨:

[Grid] Update Grid props to match PigmentGrid (#42742) @DiegoAndai
Use the codemod below to migrate the props:
```
npx @mui/codemod@next v6.0.0/grid-v2-props /path/to/folder
```

[Alert] Add ability to override slot props (#42787) @alexey-kozlenkov
[Dialog] Revert incorrect textAlign style removal (#42778) @DiegoAndai
[theme] Support CssVarsTheme in responsiveFontSizes return type (#42786) @jxdp

[material-ui] Add some writing tweaks to v6 migration page (#42623) @danilo-leal
[material-ui] Fix issues reported by react-compiler in docs folder (#42830) @sai6855
[material-ui] Add some writing tweaks to v6 migration page (#42623) @danilo-leal
[base-ui] Fix wrong description for UseTabParameters.onChange (#42749) @ohgree
Fix 301 MDN redirections @oliviertassinari

[core] Bump React to 18.3.1 (#42047) @renovate[bot]
[core] Revert lint for useThemeProps (#42817) @siriwatknp
[core] Remove useIsFocusVisible util (#42467) @DiegoAndai
[core] Remove react-test-renderer (#42784) @aarongarciah
[core][mui-utils] Remove remaining IE11 references (#42777) @DiegoAndai
[code-infra] Move HighlightedCode test into @mui/docs package (#42835) @LukasTy
[code-infra] Cleanup @mui/docs usage and legacy re-exports (#42833) @LukasTy
[docs-infra] Fix React Compiler ESLint issues in website components (#42566) @aarongarciah
[docs-infra] Add batch of design polish (#42823) @danilo-leal
[test][mui-utils] Remove usages of deprecated react-dom APIs (#42780) @aarongarciah
[test][joy-ui][Autocomplete] Fix spread key error in test (#42775) @aarongarciah