feat: add catalog url and js namespace for OEP-58 JS translations | FC-0012

[OmarIthawi]

Description

Support for OEP-58 JavaScript translations:

• Introduced abstract JavaScript translations support by adding the i18n_js_namespace property and get_i18n_js_namespace method to the SharedBlockBase. This allows XBlocks to define a JavaScript
  namespace so the XBlock i18n runtime service can manage and load JavaScript translations for XBlocks.
• Added the stub get_javascript_i18n_catalog_url method to the NullI18nService class to be implemented by runtime services.
• See the edx-platform atlas translations proposal

Related PRs

This pull request blocks the platform PR:

• feat: atlas pull for XBlock translations | FC-0012 edx-platform#33698

Refs

This pull request is part of the FC-0012 project which implements the Translation Infrastructure update OEP-58.

[openedx-webhooks]

Thanks for the pull request, @OmarIthawi! Please note that it may take us up to several weeks or months to complete a review and merge your PR.

Feel free to add as much of the following information to the ticket as you can:

• supporting documentation
• Open edX discussion forum threads
• timeline information ("this must be merged by XX date", and why that is)
• partner information ("this is a course on edx.org")
• any other information that can help Product understand the context for the PR

All technical communication about the code itself will be done via the GitHub pull request interface. As a reminder, our process documentation is here.

Please let us know once your PR is ready for our review and all tests are green.

[feanil]

@OmarIthawi let me know when you want me to merge this for you and release it. I noticed the docs build was not triggering correctly and was broken upstream so I've fixed that. You should be able to pick it up if you rebase this PR.

[OmarIthawi]

@feanil thanks for checking this. I think we need one more test case and it should be good.

I'll rebase meanwhile to fix the docs tests.

[OmarIthawi]

@feanil this is ready for merge.

[openedx-webhooks]

@OmarIthawi 🎉 Your pull request was merged! Please take a moment to answer a two question survey so we can improve your experience in the future.

[feanil]

Also released here: https://github.com/openedx/XBlock/releases/tag/xblock-1.9.0