Checklist

• I have updated to the latest available Home Assistant version.
• I have cleared the cache of my browser.
• I have tried a different browser to see if it is related to my browser.
• I have tried reproducing the issue in safe mode to rule out problems with unsupported custom resources.

Describe the issue you are experiencing

When Field descriptions with selectors are used for service or blueprints, the default: value is typically pre-filled in the field when the field is selected (in case its optional).
However, the script fields in the More Info dialog does not seem to get populated with with the default value in case defaults are defined.

Describe the behavior you expected

I think that is a usefull feature to allow defining defaults for the script input fields and reduce the fields that must be filled in by user.
This should work the same way as for blueprint and service forms

Steps to reproduce the issue

1 script with field definition. UI also supports setting the default value:
fields:
service:
required: true
name: Service
default: anker_solix.update_solarbank_schedule
selector:
select:
mode: dropdown
options:
- label: Set schedule
value: anker_solix.set_solarbank_schedule
- label: Update schedule
value: anker_solix.update_solarbank_schedule

2. When creating a lovelace entity card with the script as entity, the More Info Dialog does not pre-fill the field with the default value

What version of Home Assistant Core has the issue?

2024.3.3

What was the last working version of Home Assistant Core?

No response

In which browser are you experiencing the issue with?

Firefox 124.0.1 (64-bit)

Which operating system are you using to run this browser?

Windows 11

State of relevant entities

No response

Problem-relevant frontend configuration

No response

Javascript errors shown in your browser console/inspector

No response

Additional information

No response