fix(core): CLI command write-translations should extract translations from @docu…

[slorber]

Motivation

Fix #7983

Test Plan

none 😅 we need more tests on these CLI commands, only swizzle have good tests

Test links

Deploy preview: https://deploy-preview-_____--docusaurus-2.netlify.app/

Related issues/PRs

[netlify]

✅ [V2]

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[github-actions]

⚡️ Lighthouse report for the deploy preview of this PR

URL	Performance	Accessibility	Best Practices	SEO	PWA	Report
/	🟢 91	🟢 98	🟢 100	🟢 100	🟠 80	Report
/docs/installation	🟠 81	🟢 100	🟢 100	🟢 100	🟢 90	Report

[github-actions]

Size Change: 0 B

Total Size: 814 kB

ℹ️ View Unchanged

Filename	Size
website/.docusaurus/globalData.json	52.5 kB
website/build/assets/css/styles.********.css	111 kB
website/build/assets/js/main.********.js	610 kB
website/build/index.html	40.8 kB

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