polish(settigns): Remove trailing comma

[dschom]

Because

• We were asking Claude about random VSCODE perf issues
• It claimed this would fix the following error

This pull request

• Fix trailing comma

Issue that this pull request solves

Closes: (issue number)

Checklist

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• My commit is GPG signed.
• [] If applicable, I have modified or added tests which pass locally.
• I have added necessary documentation (if appropriate).
• I have verified that my changes render correctly in RTL (if appropriate).

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Other information (Optional)

I'm skeptical...