Fix climate card colouring when constant background color is OFF

[bjptwist]

Breaking change

Proposed change

Right now, when constant background color is OFF, if climate card is set with dry or fan_only HAVC mode, the background color is still applied to the card as if the setting was ON

Type of change

• 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

Example printscreens/gif

Additional information

• This PR fixes or closes issue: fixes #
• This PR is related to issue or discussion:
• Link to documentation pull request:

Additional documentation needed.

Checklist

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

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

• Documentation added/updated for readme.

[bjptwist]

@Clooos did you have the chance to look at this PR?

[github-actions]

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