Update style-loader requirement from ^0.12.3 to ^0.23.1

Updates the requirements on [style-loader](https://github.com/webpack-contrib/style-loader) to permit the latest version.
- [Release notes](https://github.com/webpack-contrib/style-loader/releases)
- [Changelog](https://github.com/webpack-contrib/style-loader/blob/master/CHANGELOG.md)
- [Commits](webpack-contrib/style-loader@v0.12.3...v0.23.1)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

package.json

@@ -50,7 +50,7 @@
     "sass-loader": "^6.0.6",
     "sizzle": "^2.3.0",
     "string-replace-loader": "^1.0.0",
-    "style-loader": "^0.12.3",
+    "style-loader": "^0.23.1",
     "url-loader": "^0.5.9",
     "webpack": "^3.5.5",
     "webpack-dev-server": "^2.7.1"