fix(package): update style-loader to version 1.2.1

Closes #153

Author: greenkeeper[bot]

Diff for: package.json

@@ -23,7 +23,7 @@
     "@nuxt/friendly-errors-webpack-plugin": "^2.4.0",
     "extract-css-chunks-webpack-plugin": "^3.3.2",
     "js-yaml": "^3.10.0",
-    "style-loader": "^0.23.0"
+    "style-loader": "^1.2.1"
   },
   "peerDependencies": {
     "netlify-cms": ">=0.4.0"