fix: FooterCopyright remove space after {by}

[dan-hughes]

Closes #

📑 Description

The FooterCopyright placed a space between the {by} and the fullstop/period. This fixes that.

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• My pull request adheres to the code style of this project
• My code requires changes to the documentation
• I have updated the documentation as required
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• All the tests have passed
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Name	Status	Preview	Comments	Updated
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[shinokada]

Since users can add any string, I don't think you need ..