fix(footer): sync catalog stats with templates.json (#11)

[KhyFee]

Description

Footer + homepage StatsBar now use catalogStatsFrom(getTemplatesData()) so catalog counts stay in sync with live templates.json instead of a hardcoded footer extensions count (was 8; live catalog is higher).

Closes #11

Same approach as Create-Vlang-App/website#45.

Type of Change

• Bugfix
• New feature
• Breaking change
• Documentation update

How Has This Been Tested?

• Local type-check / existing unit tests for catalog helpers
• Footer counts match StatsBar against live cpa-templates/templates.json
• Counts update when catalog JSON changes

Checklist

• My code follows the style guidelines of this project
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• I have checked my code and corrected any misspellings

[coderabbitai]

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[KhyFee]

Same approach as Create-Vlang-App/website#45 — live catalog counts instead of hardcoded footer stats.

[KhyFee]

Updated the PR description to match the Danger template sections, and rebased onto latest main so CI can re-run cleanly.

Happy to tweak anything else if Danger still flags a gap.

[vercel]

@KhyFee is attempting to deploy a commit to the create-node-app Team on Vercel.

A member of the Team first needs to authorize it.

[ulises-jeremias]

Superseded by #47 — rebased the same changes onto main@19e0fa2 (MegaLinter 10, Danger 14). Original fork branch was behind by 8 commits and needed catalogStatsFrom integration. Closing in favor of #47 (maintainer rebased, validated locally: 16 tests, type-check, MegaLinter). Thanks @KhyFee for the contribution!