Remove Taxonomy.required, make allow_multiple True by default [FC-0030]

[bradenmacdonald]

Part of openedx/modular-learning#85 , follows #87 .

This removes the Taxonomy.required field which we don't really need and isn't in the UX designs.

It also makes allow_multiple True by default since all user-created taxonomies will need to allow multiple tags and for the MVP we don't plan on implementing any way for users to change Taxonomies to not allow multiple tags.

It also removes the language tags fixture because language tags are now auto-created as needed when the system goes to tag something by language. And because removing the required field made the fixture stop working in its migration.

There is a corresponding edx-platform PR as well: openedx/edx-platform#33438

Private-ref: FAL-3477

[openedx-webhooks]

Thanks for the pull request, @bradenmacdonald! 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.

[pomegranited]

I left a couple of minor nits, but this is good to merge once they're addressed.

Oh and we probably need a version bump?

Thanks @bradenmacdonald !

👍

• I tested this by installing this branch on my devstack, and ensuring that the added migrations update ok from main.
• I read through the code
• I checked for accessibility issues N/A
• Includes documentation N/A
• Commit structure follows OEP-0051

[ChrisChV]

@bradenmacdonald Looks good 👍 Thanks!

[bradenmacdonald]

Thanks for the reviews!

[openedx-webhooks]

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