fix: update the css loader in order to fix a bug with leading dashes of css classes

Author: DimitarTachev

Diff for: package.json

@@ -77,7 +77,7 @@
     "@angular-devkit/core": "~7.2.0",
     "clean-webpack-plugin": "~1.0.0",
     "copy-webpack-plugin": "~4.6.0",
-    "css-loader": "~1.0.0",
+    "css-loader": "~2.1.1",
     "global-modules-path": "2.0.0",
     "minimatch": "3.0.4",
     "nativescript-hook": "0.2.4",