Frontend: Lovelace entity-button not working in 0.105.0

[bmf7777]

Checklist

• [x] I have updated to the latest available Home Assistant version.
• [x] I have cleared the cache of my browser.
• [x] I have tried a different browser to see if it is related to my browser.

The problem

after upgrading from 104.1->105, i'm receiving this error message when i render lovelace ui

Unknown type encountered: entity-button.
type: entity-button
entity: script.message_via_alexa
name: Send
tap_action:
  action: call-service
  service: script.turn_on
  service_data:
    entity_id: script.message_via_alexa

Expected behavior

Steps to reproduce

Environment

• Home Assistant release with the issue: 105
• Last working Home Assistant release (if known): 104.1
• UI Type (States or Lovelace): lovelace
• Browser and browser version: firefox and chome
• Operating system:

Problem-relevant configuration

      - type: entities
        title: 'Alexa Message'
        show_header_toggle: false
        entities:
          - type: entity-button
            entity: script.message_via_alexa
            name: Send
            tap_action:
              action: call-service
              service: script.turn_on
              service_data:
                entity_id: script.message_via_alexa
          - entity: input_text.message
            icon: mdi:cellphone-message
          - entity: input_select.room

Javascript errors shown in your browser console/inspector

Additional information

[iantrich]

The fact that you were able to get away with that in an entities card was a bug itself. You'll need to use the full name. type: custom:hui-entity-button-card

[raresserban]

I also have this same problem, and to me it seems a bug in Home Assistant Core. The Lovelance documentation says that the Entity Button is a valid card type:
https://www.home-assistant.io/lovelace/entity-button/

[iantrich]

It is a valid card type, not row