picture cards: add person image support

[Quentame]

Proposed change

Add person profile picture support for picture cards.

Picture Elements Card

Picture Entity Card

Picture Glance Card

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

Already in gallery/src/pages/lovelace files

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion:
• Link to documentation pull request: picture cards: add person image support home-assistant.io#32733

Checklist

• The code change is tested and works locally. (Tested with Gallery, not as actual HA frontend)
• 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

[Quentame]

What a great man, and picture 😉