Xblock

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* Support for `OEP-58 JavaScript translations <https://docs.openedx.org/en/latest/developers/concepts/oep58.html>`_:

* 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 <https://github.com/openedx/edx-platform/blob/master/docs/decisions/0019-oep-58-atlas-translations-design.rst>`_

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* Python Requirements Update
* Update setup.py, adds required packages

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* Added `xblock-utils <https://github.com/openedx/xblock-utils>`_ repository code into this repository along with docs.

* Docs moved into the docs/ directory.

* See https://github.com/openedx/xblock-utils/issues/197 for more details.

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* Switch from ``edx-sphinx-theme`` to ``sphinx-book-theme`` since the former is
deprecated. See https://github.com/openedx/edx-sphinx-theme/issues/184 for
more details.
* Added support for Django 4.2

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* Fix Release Issue with PyPi release workflow

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* Dropped Django22, 30 and 31 support
* Added Django40 Support in CI