Translating the auto-generated sidebar labels for categories.

[Rigel772]

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

The labels for documents work fine - the problem is with labels for catgories (folders)
Not sure how to tag this. It is either "Bug", "Feature request" or "Documentation"
In documentation I am not able to find how to translate the labels for auto-generated sidebar documentation menu.

Reproducible demo

No response

Steps to reproduce

1. configure i18n as per documentation
2. copy docs to i18n folder
3. translate documents
4. translate category labels in _category_.yml files

position: 3
label: "translated label"

5. run npm run start -- --locale fr

Expected behavior

Expect in sidebar to see the translated labels from category.yml files from i18n folder

Actual behavior

The displayed category labels are from original (not translated) docs folder

Searching through the Discord conversations I have found advice to run
npm run write-translations -- --locale
and place the translations in generated json file but searching through a file with thousands of lines seems to bit crazy, hard to believe that it is the recommended way

Your environment

• Docusaurus version used: 3.6.2

Self-service

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