fix(deps): update dependency css-loader to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
css-loader	dependencies	major	3.6.0 -> 4.0.0

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Release Notes

webpack-contrib/css-loader

v4.0.0

Compare Source

⚠ BREAKING CHANGES

• minimum required Node.js version is 10.13.0
• minimum required webpack version is 4.27.0
• the esModule option is true by default
• default value of the sourceMap option depends on the devtool option
• icss plugin disable by default, you need to setup the modules option to enable it
• the modules option is true by default for all files matching /\.module\.\w+$/i.test(filename) regular expression, module.auto is true by default
• the modules.context option was renamed to the modules.localIdentContext option
• default the modules.localIdentContext value is compiler.context for the module.getLocalIdent option
• the modules.hashPrefix option was renamed to the modules.localIdentHashPrefix option
• the localsConvention option was moved and renamed to the modules.exportLocalsConvention option
• the getLocalIndent option should be always Function and should always return String value
• the onlyLocals option was moved and renamed to the modules.exportOnlyLocals option
• function arguments of the import option were changed, it is now funciton(url, media, resourcePath) {}
• inline syntax was changed, please write ~ before the file request, i.e. rewrite url(~!!loader!package/img.png) to url(!!loader!~package/img.png)

Features

• @value supports importing url() (#​1126) (7f49a0a)
• improve url() resolving algorithm (bc19ddd)
• named export for locals (#​1108) (d139ec1)
• respected the style field from package.json (#​1099) (edf5347)
• support file: protocol (5604205)
• support server relative URLs

Bug Fixes

• resolution algorithm, you don't need ~ inside packages in node_modules (76f1480)

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🦋 Changeset is good to go

Latest commit: c84ae80

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This PR includes changesets to release 4 packages

Name	Type
@commercetools-frontend/mc-scripts	Patch
merchant-center-application-template-starter	Patch
playground	Patch
@commercetools-local/visual-testing-app	Patch

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[tdeekens]

@emmenko the changes here a bit hefty. I think only one affects us. I wonder though if it's considered breaking for consumers or not.

Any thoughts?

[emmenko]

Hmm if the behavior from the consumer side does not change, we don't need to mark it as breaking I suppose.

[tdeekens]

Hmm if the behavior from the consumer side does not change, we don't need to mark it as breaking I suppose.

Yeah, strictly speaking no, I agree. But e.g. Node version changes. Webpack version. The latter we encapsulate. The first not strictly.

Anyway, All good. I think patch is fine.