* refactor: use React Query to load waffle flags
* test: add test case
* fix: more clear handling of data loading and fallbacks
* refactor: simplify handling of useReactMarkdownEditor
* test: use new mockWaffleFlags() helper
* test: simplify test mocks in hooks.test.js
* refactor: avoid duplicating flag names, clarify how defaults work
The enables opening a Library Content page within the new Studio unit page. This page displays the xBlocks from the specified library and provides basic configuration options for the library.
Introduces the ability to utilize SPA functionality when the relevant waffle flags are enabled for current MFE pages. When any new MFE page is loaded, a request is made to retrieve the waffle flags. This includes both global waffle flags related to MFE Authoring pages, as well as waffle flags specific to the current course.
