chore(package): update style-loader to version 0.19.0 (#3329)

Author: greenkeeper[bot]

package.json

@@ -268,7 +268,7 @@
     "semver": "^5.3.0",
     "shelljs": "^0.7.7",
     "sinon": "^4.0.0",
-    "style-loader": "^0.18.1",
+    "style-loader": "^0.19.0",
     "stylelint": "^8.0.0",
     "stylelint-config-standard": "^17.0.0",
     "stylelint-config-suitcss": "^12.0.0",