fix(styles): Fix "sideEffects" property in package.json causing issues when importing styles (#186)

- Explicitely mark styles (scss, css) as files with side-effects, preventing Webpack from tree shaking them out

Closes #183

Author: jaydiablo

projects/angular-notifier/package.json

@@ -1,3 +1,7 @@
 {
-  "name": "angular-notifier"
+  "name": "angular-notifier",
+  "sideEffects": [
+    "*.scss",
+    "*.css"
+  ]
 }