[core] Only define aliases once for TypeScript and once for Webpack + Babel

[flaviendelangle]

Goals

1. Define the path leading to the packages in as little places as possible to avoid missing aliases and make the architecture easier to understand.
2. Reduce our usage of babel.config.js for the doc to hopefully one day be able to use SWC (other plugins already have issues like https://github.com/oliviertassinari/babel-plugin-transform-react-remove-prop-types/issues/201 or https://github.com/swc-project/swc/discussions/6057)

Side note

• @mui/docs and modules contains almost nothing, maybe we could reduce the amount of aliases (and therefore make the overall architecture easier to understand) in the future.

[mui-bot]

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[siriwatknp]

@flaviendelangle Could you recheck again?

[Janpot]

@flaviendelangle Do you have an idea which specific build/test/lint flows break when we remove the babel aliasing? Just for me to know what makes sense to concentrate on next in code infra?

[flaviendelangle]

@flaviendelangle Do you have an idea which specific build/test/lint flows break when we remove the babel aliasing? Just for me to know what makes sense to concentrate on next in code infra?

I did not test it in a long time but I'd say the doc building scripts should breaking

[Janpot]

@flaviendelangle Just stumbled upon this PR again and realized it has been superseded by https://github.com/mui/material-ui/pull/40792 (or at least part of it). Apologies, I think I forgot about the existence of this PR while building that.

[flaviendelangle]

I need to go back to it and see if some of it still make sense :laughing: