FR: add switch domain to magic areas

[xBourner]

Could you add switch entities to magic areas like all other entities?
So for each room and global (meta areas)

Would like to see some diffferences based on device_class attribute. Like in this script:

            {%- set areas = states.switch | selectattr('attributes.device_class','eq','outlet') 
            | map(attribute='entity_id') 
            | unique | reject('none') | list -%} 
            {{areas}}