Option to hide create box on todo card

[karwosts]

Proposed change

Option (hide_create: true) to hide the create box at the top of todo cards. In some views it's not always needed when you just want a display.

Also move the addrow div inside the conditional, as the extra padding is somewhat excessive when the box is missing (either because of this feature or if its not supported by the entity). (Probably still too much even after this change, but that's a topic for another day)

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 #

• This PR is related to issue or discussion:
  https://community.home-assistant.io/t/todo-list-card-without-add-item/638585

• 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