enable extracted video block

[farhan]

Relevant pr in xblocks-contrib: openedx/xblocks-contrib#142

Currently PR will stay in draft until all the test cases get passed and branch updates to pypi version of xblocks-contrib

[open-craft-grove]

Sandbox deployment successful 🚀
🎓 LMS
📝 Studio
ℹ️ Grove Config, Tutor Config, Tutor Requirements

[open-craft-grove]

Sandbox deployment successful 🚀
🎓 LMS
📝 Studio
ℹ️ Grove Config, Tutor Config, Tutor Requirements

[open-craft-grove]

Sandbox deployment successful 🚀
🎓 LMS
📝 Studio
ℹ️ Grove Config, Tutor Config, Tutor Requirements

[open-craft-grove]

Sandbox deployment successful 🚀
🎓 LMS
📝 Studio
ℹ️ Grove Config, Tutor Config, Tutor Requirements

[open-craft-grove]

Sandbox deployment successful 🚀
🎓 LMS
📝 Studio
ℹ️ Grove Config, Tutor Config, Tutor Requirements

[ttqureshi]

Video XBlock import/export testing notes

I have tested the import/export functionality of the Extracted Video XBlock on my local setup. Based on my testing, the Extracted Video XBlock is exported in the pointer tag format during export, and when imported, it parses the pointer tag format correctly. The functionality is working as expected.
I have tested the following formats of the Video XBlock:

1. Youtube Video
2. Youtube Video with Transcript
3. mp4 Video
4. webm Video

The exported course with the built-in Video XBlock is the same as the course with the extracted Video XBlock. This shows that the extracted Video XBlock is being exported as expected.

cc: @farhan