Prevent ha-form data lost if quick data updates

[piitaya]

Proposed change

Firefox password manager set username and password in the same time. Two value-changed event were fired but this.data wasn't up-to-date. This PR updates this.data before the fire event so ha-form internal is up-to-date.

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

Additional information

• This PR fixes or closes issue: fixes Authorize page inputs are buggy with dev build #18084
• 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