Allow multiple quiz questions on a single page

Showing several questions per page would reduce clicking and page loads, give learners a smoother experience on longer quizzes, and let us group related questions that share a scenario or topic.

Current behavior: Skilljar displays quiz questions one page at a time, and there is no way to show them together.

Requested behavior: Add a quiz layout setting that lets admins choose:

• One question per page (current default)
• All questions on a single page
• A set number of questions per page, or grouping by question pool/topic