Hide WorldLayer in browser

[AlexDocking]

WorldLayer.Settings.Visible now works to hide layers in the game in 9.6 which I'm pleased about. Is there a way to synchronise that with the web browser or is it not implemented yet? Hiding a layer in game isn't very useful yet when it's still visible in the browser

[MonzUn]

@JulianMa fixed it for us locally. Could you PR it?

[JulianMa]

I have a fix for it, but i consider it a hack, since it only filters the layer out of the REST response.
It's still possible to fetch it from the Server itself, because the .gif files are generated into the WebRoot of the webserver.
But yes, visually its hidden then.