[bonijoao]

Description

Part of #15126. Adds the Brazilian Portuguese translation of the revealjs-menu-button-label key: "Menu de slides".

Only _language-pt-BR.yml is changed. "Slide" is the usual term in Brazil, while European Portuguese uses "diapositivo", so the key is set in the regional file instead of _language-pt.yml.

Checklist

• referenced the GitHub issue this PR closes
• updated the appropriate changelog in the PR

AI-assisted PR

• AI tool used: Claude Code
• Codebase grounding: local clone, following merged PRs Translate revealjs-menu-button-label in French #15162 and Translate revealjs-menu-button-label in Greek #15199
• Human review: I have reviewed, tested, and verified the AI-generated content before submitting. I am a native Brazilian Portuguese speaker and chose the translation.

Note: autonomous AI agents submitting PRs without human oversight are not permitted — see the Code of Conduct.

[posit-snyk-bot]

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