allow device_class: motion for switches

[Mariusthvdb]

for the motion sensor switches, I'd love to be able to set the icons to use mdi:motion-sensor, and mdi:motion-sensor-off.

I am aware this is used for the actual indication of a binary_sensor to be on/off, but in the Frontend setup for the switches it would also be a nice indication for the switch to be in the on.off position.

Using the device_class: motion would be all to set in a customize_glob:

homeassistant:

  customize_glob:

    switch.*motion_sensor_switches:
      device_class: motion

result would be:

(showing platform: group switches here)

I'd be happy to PR

frontend/src/common/entity/domain_icon.ts

Line 106 in 27ca45d

case "switch":

if that would be all it takes to add the device_class and icon options.

(not sure if we need backend changes too to allow to set this device_class on switches?)
strike that, need to change

https://github.com/home-assistant/core/blob/034ba7d3ffb962d7c5b3df2dd9376f55695d9979/homeassistant/components/switch/__init__.py#L39

too

thanks for considering