Update dependency style-loader to v2

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
style-loader	devDependencies	major	1.3.0 -> 2.0.0

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Release Notes

webpack-contrib/style-loader

v2.0.0

Compare Source

⚠ BREAKING CHANGES

• minimum supported Node.js version is 10.13.0
• the esModule option is true by default, you need to change const locals = require('./styles.css')/require('./styles.css') on import locals from './styles.css'/import './styles.css'' (#​489) (727a24d)
• removed support for loaders returning String instead of Array (#​491) (7a0ce4c)

⚠ NOTICE

To avoid problems between style-loader and mini-css-extract-plugin because of changing the esModule option to true by default we strongly recommend upgrading mini-css-extract-plugin to 1.0.0 version.

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