Example button card container

- type: custom:button-card
        template: container
        color: '#cf680e'
        name: Livingroom
        custom_fields:
          buttons:
            card:
              type: horizontal-stack
              cards:
                - entity: light.mantel_lamp
                  name: Mantel Lamp
                  template: standard
                  icon: mdi:lamp
                  type: custom:button-card
                - entity: light.couch_lamp_top
                  name: Couch Lamp Top
                  template: standard
                  icon: mdi:floor-lamp
                  type: custom:button-card
                - entity: light.couch_lamp_bottom
                  name: Couch Lamp Bottom
                  template: standard
                  icon: mdi:desk-lamp
                  type: custom:button-card
                - entity: light.livingroom_fan
                  name: Fan
                  template: standard
                  icon: mdi:ceiling-fan-light
                  type: custom:button-card
                - entity: media_player.shield_3
                  name: TV
                  template: standard
                  icon: mdi:television-classic
                  type: custom:button-card