Change icons for cover with device_class curtain

[pascalwinters]

Breaking change

Proposed change

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• 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 Curtain commands shown as cover #11706
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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

[bramkragten]

I'm not sure if this makes it any clearer. I think the horizontal arrows like used for gate are better suited.

[pascalwinters]

I'm not sure if this makes it any clearer. I think the horizontal arrows like used for gate are better suited.

I understand your remark, but this one is more curtain specific. So it feels more accurate. And it's correlates with the status icon.
The only 'problem', it doesn't look like an action.

[bramkragten]

The only 'problem', it doesn't look like an action.

Yeah, and that's a pretty big problem I would say

[pascalwinters]

horizontal arrows like used for gate are better suited.

Updated the PR