chore: update links legacy documentation and packages

[josephfusco]

These changes update the legacy docs and packages to point to their new branch-specific location.

This is in support of #1984

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Latest commit: a9e84e0

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[github-actions]

📦 Next.js Bundle Analysis for @faustwp/getting-started-example

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[moonmeister]

Thanks joe, I also merge this into legacy-faust so those docs have the changes