Update the `RelatedArticles` component to accept and filter by `currentSlug`, preventing the currently viewed article from appearing in the related articles section. Also, remove the category badge from the article page.
Replit-Commit-Author: Agent
Replit-Commit-Session-Id: 413891e8-d784-4bea-b9f5-91a5a68316b4
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Replit-Helium-Checkpoint-Created: true
