FR: support Button on state position

[Mariusthvdb]

Please consider adding support for the Button entity and showing the Button Press as state, just like is done with the toggle for switch. Currently we see

when using:

        - type: custom:template-entity-row
          entity: button.front_room_ping
          secondary: >
            {{as_timestamp(states(config.entity))|
                                timestamp_custom('%d %b %X')}}

and since we dont have a HA core way to use the secondary_info: line for last-triggered one a button (because the button entity doesnt have a last_triggered attribute), this would be the only way to combine both the secondary_info, And the button?

        - type: custom:template-entity-row
          entity: button.front_room_ping
          button: true
          secondary: >
            {{as_timestamp(states(config.entity))|
                                timestamp_custom('%d %b %X')}}

the current more-info shows the last-changed time, but that really is useless info, as it merely shows what the last restart of the system was in this case, and doesn't not survive restart/get restored:

Thanks!

[Mariusthvdb]

or, see: https://community.home-assistant.io/t/auto-entities-automatically-fill-cards-with-entities/147801/546

using:

          filter:
            template: >
              {%- for s in states.binary_sensor -%}
                {%- if s.object_id.endswith("firmware_update") and states(s.entity_id) == 'on' -%}
                    {{
                      { 'type': 'custom:template-entity-row',
                        'entity': "button." + s.object_id.replace("firmware_update", "ota_update"),
                        'state': 'BUTTON',
                        'secondary': state_attr(s.entity_id, 'installed_version')
                      }
                    }},
                {%- endif -%}
              {%- endfor -%}

in an auto-entities card