Bump style-loader from 0.22.0 to 0.23.1 (#257)

Bumps [style-loader](https://github.com/webpack-contrib/style-loader) from 0.22.0 to 0.23.1.
- [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@v0.22.0...v0.23.1)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -39,7 +39,7 @@
     "eslint-plugin-react": "^7.13.0",
     "gh-pages": "^1.1.0",
     "lerna": "^3.14.1",
-    "style-loader": "^0.22.0",
+    "style-loader": "^0.23.1",
     "uglify-es": "^3.2.1",
     "uglifyjs-webpack-plugin": "^1.2.3",
     "webpack": "^3.10.0",