The announcementBar cannot be translated

[Selflocking]

Have you read the Contributing Guidelines on issues?

• I have read the Contributing Guidelines on issues.

Prerequisites

• I'm using the latest version of Docusaurus.
• I have tried the npm run clear or yarn clear command.
• I have tried rm -rf node_modules yarn.lock package-lock.json and re-installing packages.
• I have tried creating a repro with https://new.docusaurus.io.
• I have read the console error message carefully (if applicable).

Description

Run yarn write-translations, announcementBar does not appear on i18n/en/, so currently the announcementBar cannot be translated

Reproducible demo

https://docusaurus.io/zh-CN/

Steps to reproduce

yarn write-translations

Expected behavior

the announcementBar can be translated

Actual behavior

announcementBar does not appear on i18n/en/

Your environment

No response

Self-service

• I'd be willing to fix this bug myself.

[Josh-Cena]

Duplicate of #4542. This is so far untranslatable because we allow raw HTML so if you outsource your translations to an external workflow you risk XSS. We need to see how to harden the security so only pure decorative markup is tolerated.