Create workflow for "switching modes" of question selection

[marcellamaki]

Overview

In the updates to quizzes, we have updated both the default workflow (randomized quizzes) and added the "manual" quiz creation workflow.

While the technical implementation does at this stage allow the user to switch back and forth between the two, the fully "managed" user experience is not quite polished yet and some of the behavior that is the default on the code side makes less sense as a user experience. This issue is to go through the figma and to be sure the UI for changing modes is well managed, and that errors and edge cases are handled correctly.

References

Figma - please see the question selection "switch mode" titled workflow

Acceptance Criteria

• the PR uses the existing state/selection management for working pool of resources and side panel navigation
• When no resources in cart, the existing functionality should work to switch from default to manual mode
• Switching from default mode to manual mode when resources are already selected should clear that state and existing selections
• If there are resources selected in "default mode" - conditionally render text that indicates that the selection will be cleared
• In Question Preview mode, a "point of use" checkbox should appear to allow the user to switch into manual selection mode
• When changing selection mode, a banner should appear to notify the user