Revert "[examples] Update create-react-app examples with styled-components to use package aliases"

[mnajdova]

Reverts #27591

npm does not work with the current setup. Closes #27846

Alternativly we can specify in the project's readme that only yarn is supported at the moment.

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Also need to revert the changes in the nextjs with styled-components example. (or again specify in the readme that only yarn is supported.

For nextjs I would vote for adding in the readme to use yarn as those changes also fixed the class name mismatch error.

[mui-pr-bot]

No bundle size changes (experimental)

Generated by 🚫 dangerJS against d5ec328

[eps1lon]

I thought this was about npm 6 vs 7 but I can't find any note about npm supporting resolutions. They only have a planned overrides field.

How was it tested that resolutions works with npm?

[mnajdova]

How was it tested that resolutions works with npm?

I've never tested with npm. I assumed it worked based on #27088 (comment), but testing now the nextjs example it doesn't work as well. Maybe it was not tested from clean project and emotion was installed already.

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For nextjs @eps1lon do you think it's ok if we note that it works only with yarn, as I remember that for some reason those changes fixed the class name mismatch error too.

[eps1lon]

For nextjs @eps1lon do you think it's ok if we note that it works only with yarn, as I remember that for some reason those changes fixed the class name mismatch error too.

This is not really viable. They are probably used equally often so not supporting either one is not really an option.