[BUGFIX] Cast theme.layout.maximum_content_width to float in Unicard modules

[MattiasNilsson]

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PR Type

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• [FEATURE] - A new feature
• [BUGFIX] - A bug fix
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Breaking change

Does this PR introduce a breaking change?

• Yes
• No

Issue references

Issue Number: #...

Description

Cast theme.layout.maximum_content_width to float in Unicard modules.

[pxamike]

Nice catch!