[system] Minimize color scheme script

[siriwatknp]

To reduce HTML size, the script returns from getInitColorSchemeScript should be minified.

This PR:

• Move the logic to scripts/colorSchemeScript (source of truth)
• Run yarn system:minify-color-scheme-script to read the source and minify via terser
• Put the minified code back to src/cssVars/getInitColorSchemeScript

All the tests are passed, so I believe that the minification is done correctly.

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• [x] I have followed (at least) the PR section of the contributing guide.

[mui-bot]

Details of bundle changes

@material-ui/core: parsed: -0.14% :heart_eyes:, gzip: -0.09% :heart_eyes: @material-ui/system: parsed: -1.17% :heart_eyes:, gzip: -0.52% :heart_eyes: @mui/joy: parsed: -0.38% :heart_eyes:, gzip: -0.25% :heart_eyes:

Generated by :no_entry_sign: dangerJS against 3122baa97b9eef0cdd837a91bd237f4634aea838

[siriwatknp]

Is this really an issue? I mean how much did we save in bites? Is it worth the complexity added in the code?

It comes from a community suggestion.

Other libraries that minify the script

• https://github.com/pacocoursey/next-themes/blob/main/src/index.tsx#L184
• https://github.com/chakra-ui/chakra-ui/blob/e98db2cc02e530c980997353dd4f093da9064593/packages/color-mode/src/color-mode-script.tsx#L18
• https://github.com/gregberge/xstyled/blob/c35d470656820f7c9cc749eb33e02cf5cea24d26/packages/core/src/colorModes.tsx#L387

Will find out how much it saves.

[mnajdova]

It comes from a https://github.com/mui/material-ui/issues/27651#issuecomment-1123258293.

I was missing this in the PR description.