fix: add url redirects for moved articles and fix existing links

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Description

This PR does the following:

• Adds URL redirects for the articles moved in Articles fix #573
• Fixes internal links to moved articles to avoid false positives from the link checker

Related

Testing

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Checklist

Before submitting a Pull Request, please ensure the following:

• 🚨 This PR does not introduce breaking changes.
• All CI checks (GH Actions) pass.
• Documentation is updated as needed.
• Tests are updated or added as necessary.
• Code is well-commented, especially in complex areas.
• Git history is clean — commits are squashed to the minimum necessary.

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@pedrominatel PTAL

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I will merge it. I tested everything and we can see how it works after the cron jobs pass on Monday.