channelButtons not working
Hi, first of all thanks for the great work on this plugin!

I have an issue with the channelButtons. The plugin loads fine, and everythng is working as expected, including app switching, volme controle and channelcontrol via channel up and channel down
but if I click on a channelButton nothing happens, I don't even see anything in my homebridge logfile.

This is my config:

 {
                        "accessory": "webostv",
                        "name": "My webOS tv",
                        "ip": "192.168.x.x",
                        "mac": "xx:xx:xx:xx:xx:xx",
                        "keyFile": "/home/pi/.homebridge/lgtvKeyFile",
                        "mediaControl": false,
                        "volumeControl": "slider",
                        "channelControl": true,
                        "pollingEnabled": true,
                        "pollingInterval": 1,
                        "appSwitch":[
                           "com.webos.app.livetv",
                           "com.webos.app.tvguide",
                           "com.webos.app.hdmi1",
                           "com.webos.app.hdmi2",
                           "com.webos.app.hdmi3"
                        ],
                        "channelButtons": [1,2,303,305,506]
                }
Did I do something wrong? Any help is much appreciated!

Thank you and kind regards.