Using "default" option: a header is only shown when "name" is defined explicitly (+styling lost)

[ildar170975]

Consider this code:

type: entities:
entities:
      - type: custom:multiple-entity-row
        entity: sun.sun
        name: 'hide_unavailable: false'
        entities:
          - entity: sensor.testing_availability
        show_state: false

      - type: custom:multiple-entity-row
        entity: sun.sun
        name: 'hide_unavailable: true'
        entities:
          - entity: sensor.testing_availability
            hide_unavailable: true
        show_state: false

      - type: custom:multiple-entity-row
        entity: sun.sun
        name: 'hide_unavailable: true'
        entities:
          - entity: sensor.testing_availability
            hide_unavailable: true
            default: xxx
        show_state: false

      - type: custom:multiple-entity-row
        entity: sun.sun
        name: 'hide_unavailable: true'
        entities:
          - entity: sensor.testing_availability
            hide_unavailable: true
            default: xxx
            name: some_name
        show_state: false

where sensor.testing_availability is a sensor which may become unavailable.
Here the results:

If the entity is hidden AND default is set -> then:

1. If name is NOT defined explicitly:
   -header is NOT shown
   -styling IS lost.
2. If name is defined explicitly:
   -header is shown
   -styling is not lost.

IMHO:

1. A header must be displayed if default value is displayed (unless it is explicitly hidden by name: false).
2. Styling should be persistent.