status-bar and navigation-bar

Hi.

```
{
  "global": {
    "action": "close"
  },
  "settings": {
    "status-bar": true,
    "navigation-bar": true
  },
  "$schema": "https://raw.githubusercontent.com/datalogic/scan2deploy-android-schema/master/schema.json"
}
```

When I try to execute this script using dlstager on JoyaTouchA6 Android 8, the status bar become visible but I can not pull down it...

Alessandro