Show vocab on lesson overview

[bethanyaconnor]

Adds a section for vocabulary on the lesson overview page.

To test this, I imported vocab using the script updates in #38486. I don't think it's a problem if this goes in before importing vocab from curriculumbuilder as the section will be hidden until any vocab is added.

Links

• spec
• jira

Testing story

Reviewer Checklist:

• Tests provide adequate coverage
• Privacy and Security impacts have been assessed
• Code is well-commented
• New features are translatable or updates will not break translations
• Relevant documentation has been added or updated
• User impact is well-understood and desirable
• Pull Request is labeled appropriately
• Follow-up work items (including potential tech debt) are tracked and linked

[davidsbailey]

Looks great, Bethany!