GX-Entwicklung

How to reproduce:

1. Have a child-theme with a json like in the one appended to this ticket
2. Navigate to "Gambio Admin" -> "Shop settings" -> "My Shop"
3. Activate the child theme under "Template set (theme)"
4. Navigate to "Gambio Admin" -> "Layout / Design" -> "Template Settings" click "Load store in edit mode"

IFrame has an infinity loading spinner. Works only once you add

"areas": {
"id": "areas",
"categories": [

        ]
    }

to the "config" object in the theme.json

Suggestion: This should throw a new Exception, like MisconfiguredThemeJsonException or something which will be handled by the VueApp to let the user now that his Theme is not supported by StyleEdit4