Device matching to specific to allow merging devices.

[EdenNelson]

I'm new to HA, but something that has bothered me is a single device would appear in HA as multiple devices.
I attempted to merge my Google devices, but the Google Home integration kept creating a new device.

The quick fix was to remove the name and manufacturer matching in entity.py. After merging the device in core.device_registry I had a single device with all features and controls from the multiple integrations. In this case: Google Home, Google Cast, and Unifi Network.

entity.py

    def device_info(self) -> DeviceInfo:
        return {
            "identifiers": {(DOMAIN, self.device_id)},
            #"name": f"{DEFAULT_NAME} {self.device_name}",
            #"manufacturer": MANUFACTURER,
            "model": self.device_model,
        }