Fix cast views not showing a background

[silamon]

Proposed change

Comparing cast dashboards with regular dashboards, there's a css rule to set the childs of hui-view to maximum width. That rule was only applied to the view (and not the background) for casted views.

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:
• 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

[bramkragten]

Does not fix the problem, but still a good to merge 👍

[wendevlin]

I think this is related:

• Fix background #23736

[silamon]

I think this is related:

• Fix background #23736

Probably this one: #23731
In that regard I marked yours to be cherry picked.

Does not fix the problem, but still a good to merge 👍

Feel free to merge, but if it doesn't fix anything at all, I don't see why we should merge.

[bramkragten]

Feel free to merge, but if it doesn't fix anything at all, I don't see why we should merge.

To make sure cast and non cast are aligned :-)