chore(deps): update dependency css-loader to v5

This MR contains the following updates:

Package	Type	Update	Change
css-loader	devDependencies	major	4.3.0 -> 5.0.0

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Release Notes

webpack-contrib/css-loader

v5.0.0

Compare Source

⚠ BREAKING CHANGES

• migrate on PostCSS 8
• runtime doesn't contain source maps code without sourceMap: true
• returned value from the getLocalIdent escapes by default, the exportName value is always unescaped
• Auto enable icss modules for all files for which /\.icss\.\w+$/i (the modules.compileType option is icss)
• [emoji] placeholder was deprecated
• icss option was removed (it was deprecated previously)

Features

• allow named exports to have underscores in names (#​1209) (747d62b)
• hide warning when you don't need handle url()/@import (#​1195) (dd52931)
• improve error message (52412f6)
• reduce runtime (9f974be)
• add fallback if custom getLocalIdent returns null/undefined (#​1193) (0f95841)

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