[docs-infra] Remove explicit mui-x dependency resolving

[LukasTy]

• Remove explicit mui-x relevant packages resolving in monorepo relevant code
• introduce the optional postProcessImport "hook", with which mui-x can post-process the import on it's end
• Remove mui-x related tests in favour of mui/mui-x@f67a686

Needed to resolve time-sensitive issue due to breaking date-fns v3 release: mui/mui-x#11463

[mui-bot]

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[flaviendelangle]

Looks good to me, this logic will be a lot easier to maintain on our repo

Just, are we sure that we don't have any demo on the core doc that depends on it?

[LukasTy]

Just, are we sure that we don't have any demo on the core doc that depends on it?

Everything works as expected unless I couldn't find some demo related to Data Grid or Pickers. 🙈
There are basically no demos in docs having X dependencies and an option to edit it in codesandbox, hence, nothing seems impacted.
I've reverted one change that could have had the slightest impact, because there is a demo using Data Grid that is editable. 👍

[oliviertassinari]

I changed the label to be docs-infra. This looks about having the proper abstraction level, it was a leaky abstraction before.

What about this demo though https://mui.com/x/react-date-pickers/getting-started/#render-your-first-component? I guess it's not needed because the dependencies are hardcoded.

[LukasTy]

I changed the label to be docs-infra. This looks about having the proper abstraction level, it was a leaky abstraction before.

Thanks, in that case, I've asked for a review from docs-infra. 👍

What about this demo though https://mui.com/x/react-date-pickers/getting-started/#render-your-first-component? I guess it's not needed because the dependencies are hardcoded.

It's the same as for all the other demos. We moved the relevant related dependency resolving into mui-x to have better control over it and avoid fighting the logic existing in "monorepo".

[LukasTy]

Warning

This branch should not be deleted, because it is used for v6 (master) and will remain being used for docs-v6, even after v7 becomes stable.