fix: bump hugo theme to 0.35.0

[Jcahilltorre]

Proposed changes

• Bumps the Hugo theme to v.0.35.0
• New highlight colors for code blocks that fix some accessibility issues

Checklist

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• If applicable, I have checked that any relevant tests pass after adding my changes
• If applicable, I have updated any relevant documentation (README.md)
• If applicable, I have tested my cross-platform changes on Ubuntu 22, Redhat 8, SUSE 15 and FreeBSD 13

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