LW1019IVSM Support
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**Describe Your Problem:**
<!-- A clear and concise description of what problem you are trying to solve. -->

I cannot seem find the correct OP code to set for the "Energy Saver" mode button. The OP codes 0, 1, 2 correct set the unit too Cool, Dry, and Fan mode.

Not sure if this a HomeKit issue but each mode is exposed as a separate button so I can in theory toggle them all on but only the last toggled one will apply (See first four and last screenshot).

Another strange thing is the fan speed is exposed as a slider where as this unit only has three fan modes, F1, F2, and F3 (See second and the last two screenshots; fan speed is shown as percentage).

I am also seeing `'Target Heater-Cooler State'` when the unit is set to `COOLING` only.

**Logs:**
```
[7/19/2022, 11:57:44 PM] [homebridge-lg-thinq] This plugin generated a warning from the characteristic 'Target Heater-Cooler State': characteristic value 1 is not contained in valid values array. See https://homebridge.io/w/JtMGR for more info.
[7/19/2022, 11:57:44 PM] [homebridge-lg-thinq] This plugin generated a warning from the characteristic 'Target Heater-Cooler State': characteristic value 1 is not contained in valid values array. See https://homebridge.io/w/JtMGR for more info.
[7/19/2022, 11:58:18 PM] [homebridge-lg-thinq] This plugin generated a warning from the characteristic 'Target Heater-Cooler State': characteristic value 1 is not contained in valid values array. See https://homebridge.io/w/JtMGR for more info.
[7/19/2022, 11:58:18 PM] [homebridge-lg-thinq] This plugin generated a warning from the characteristic 'Target Heater-Cooler State': characteristic value 1 is not contained in valid values array. See https://homebridge.io/w/JtMGR for more info.
```
**Plugin Config:**

```json
"devices": [
    {
        "id": "xxx",
        "name": "Air Conditioner",
        "type": "AC",
        "ac_mode": "COOLING",
        "ac_temperature_sensor": true,
        "ac_fan_control": true,
        "ac_buttons": [
            {
                "name": "Cool",
                "op_mode": 0
            },
            {
                "name": "Energy Saver",
                "op_mode": 6
            },
            {
                "name": "Fan",
                "op_mode": 2
            },
            {
                "name": "Dry",
                "op_mode": 1
            }
        ],
    }
]
```

**Screenshots:**
<!-- If applicable, add screenshots to help explain your problem. -->
![IMG_3681](https://user-images.githubusercontent.com/8904909/179917282-099556f7-0d08-425e-8ea1-dcc1f30231cc.PNG)
![IMG_3682](https://user-images.githubusercontent.com/8904909/179917303-258ccd12-0669-47a0-89d5-529dd90198a0.PNG)
![IMG_3683](https://user-images.githubusercontent.com/8904909/179917318-443993f4-a526-4962-9886-301d8eb8893d.PNG)
![IMG_3684](https://user-images.githubusercontent.com/8904909/179917326-5bc1dff8-001e-4de8-8257-1104b0f56e2a.PNG)
![IMG_3685](https://user-images.githubusercontent.com/8904909/179917452-47233125-82e7-4f82-bb1d-dc11f73bd01d.PNG)
![IMG_3686](https://user-images.githubusercontent.com/8904909/179917465-ac49f482-c430-4eab-bea0-30cfeb6a9da1.PNG)

**Environment:**

* **Plugin Version**: v1.2.17
* **Homebridge Version**: v1.5.0
* **Node.js Version**:  v16.16.0
* **NPM Version**: v8.11.0
* **Operating System**:  Ubuntu 20.04.4

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