chore(package): update css-loader to version 3.3.2

Closes #16

Author: greenkeeper[bot]

package.json

@@ -52,7 +52,7 @@
     "babel-preset-react-app": "^3.1.2",
     "babel-runtime": "^6.26.0",
     "cross-env": "^5.2.0",
-    "css-loader": "^1.0.0",
+    "css-loader": "^3.3.2",
     "eslint": "^5.2.0",
     "eslint-config-airbnb": "^17.0.0",
     "eslint-plugin-babel": "^5.1.0",