chore(package): update style-loader to version 1.2.0

Closes #623

Author: greenkeeper[bot]

package.json

@@ -122,7 +122,7 @@
     "redux-devtools-extension": "2.13.8",
     "redux-mock-store": "1.5.4",
     "sass-loader": "8.0.0",
-    "style-loader": "1.1.2",
+    "style-loader": "1.2.0",
     "stylelint": "12.0.1",
     "stylelint-config-recommended": "3.0.0",
     "stylelint-scss": "3.13.0",