fix: add cross-env for windows-support

Author: fratzinger

.vscode/settings.json

@@ -8,7 +8,8 @@
     "lib/**": true,
     "**/node_modules": true,
     "**/bower_components": true,
-    "**/yarn.lock": true
+    "**/yarn.lock": true,
+    "**/package-lock.json": true
   },
   "workbench.colorCustomizations": {
     "activityBar.background": "#2B3011",