chore(i18n,docs): update translations (#43567)

docs/i18n/japanese/_sidebar.md

@@ -1,7 +1,7 @@
-- **Getting Started**
-  - [Introduction](index.md "Contribute to the freeCodeCamp.org Community")
-  - [Frequently Asked Questions](FAQ.md)
-- **Code Contribution**
+- **はじめに**
+  - [イントロダクション](index.md "freeCodeCamp.org コミュニティに貢献する")
+  - [よくある質問](FAQ.md)
+- **コードのコントリビューション**
   - [Set up freeCodeCamp locally](how-to-setup-freecodecamp-locally.md)
   - [Codebase best practices](codebase-best-practices.md)
   - [Open a pull request](how-to-open-a-pull-request.md)
@@ -10,9 +10,9 @@
   - [Work on the news theme](how-to-work-on-the-news-theme.md)
   - [Work on the docs theme](how-to-work-on-the-docs-theme.md)
   - [Work on practice projects](how-to-work-on-practice-projects.md)
-- **Translation Contribution**
-  - [Work on translating resources](how-to-translate-files.md)
-  - [Work on proofreading translations](how-to-proofread-files.md)
+- **翻訳のコントリビューション**
+  - [リソースを翻訳する](how-to-translate-files.md)
+  - [翻訳を校正する](how-to-proofread-files.md)
 - **Optional Guides**
   - [Set up freeCodeCamp on Windows (WSL)](how-to-setup-wsl.md)
   - [Add Cypress tests](how-to-add-cypress-tests.md)

docs/i18n/japanese/how-to-test-translations-locally.md

@@ -126,6 +126,60 @@ CLIENT_LOCALE="dothraki"
 CURRICULUM_LOCALE="dothraki"
 ```
 
+## Enabling Localized Videos
+
+For the video challenges, you need to change a few things. First add the new locale to the GraphQL query in the `client/src/templates/Challenges/video/Show.tsx` file. For example, adding Dothraki to the query:
+
+```tsx
+  query VideoChallenge($slug: String!) {
+    challengeNode(fields: { slug: { eq: $slug } }) {
+      videoId
+      videoLocaleIds {
+        espanol
+        italian
+        portuguese
+        dothraki
+      }
+      ...
+```
+
+Then add an id for the new language to any video challenge in an audited block. For example, if `auditedCerts` in `all-langs.js` includes `scientific-computing-with-python` for `dothraki`, then you must add a `dothraki` entry in `videoLocaleIds`.  The frontmatter should then look like this:
+
+```yml
+videoLocaleIds:
+  espanol: 3muQV-Im3Z0
+  italian: hiRTRAqNlpE
+  portuguese: AelGAcoMXbI
+  dothraki: new-id-here
+dashedName: introduction-why-program
+---
+```
+
+Update the `VideoLocaleIds` interface in `client/src/redux/prop-types` to include the new language.
+
+```ts
+export interface VideoLocaleIds {
+  espanol?: string;
+  italian?: string;
+  portuguese?: string;
+  dothraki?: string;
+}
+```
+
+And finally update the challenge schema in `curriculum/schema/challengeSchema.js`.
+
+```js
+videoLocaleIds: Joi.when('challengeType', {
+  is: challengeTypes.video,
+  then: Joi.object().keys({
+    espanol: Joi.string(),
+    italian: Joi.string(),
+    portuguese: Joi.string(),
+    dothraki: Joi.string()
+  })
+}),
+```
+
 ## Loading Translations
 
 Because the language has not been approved for production, our scripts are not automatically downloading the translations yet. Only staff have the access to directly download the translations - you are welcome to reach out to us in our [contributors chat room](https://chat.freecodecamp.org/channel/contributors), or you can translate the English markdown files locally for testing purposes.