Add default values for script fields in more-info dialog

[paolapersico1]

Proposed change

Previously, the more-info dialog for script entities didn't show the user-defined default values for the script fields, this PR fixes this.

Type of change

• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New feature (thank you!)
• Breaking change (fix/feature causing existing functionality to break)
• Code quality improvements to existing code or addition of tests

Example configuration

alias: TestScript
sequence:
  - if:
      - condition: template
        value_template: "{{ testfield == \"decrement\" }}"
    then:
      - service: counter.decrement
        metadata: {}
        data: {}
        target:
          entity_id: counter.helper
    else:
      - service: counter.increment
        target:
          entity_id:
            - counter.helper
        data: {}
mode: single
fields:
  testfield:
    selector:
      select:
        options:
          - increment
          - decrement
    name: testfield
    default: increment
    required: true
icon: mdi:account

counter:
  helper:
    initial: 0
    step: 1

Additional information

• This PR fixes or closes issue: fixes Script field defaults are not used in frontend #20182
• This PR is related to issue or discussion:
• Link to documentation pull request:

Checklist

• The code change is tested and works locally.
• There is no commented out code in this PR.
• Tests have been added to verify that the new code works.

If user exposed functionality or configuration variables are added/changed:

• Documentation added/updated for www.home-assistant.io

Stale

[bramkragten]

I think we should use computeInitialHaFormData here.

[github-actions]

There hasn't been any activity on this pull request recently. This pull request has been automatically marked as stale because of that and will be closed if no further activity occurs within 7 days.
Thank you for your contributions.