fix: [AA-1206] resolve access APIs (#838)

* fix: [AA-1206] resolve access APIs

As part of eliminating redundant fields course_access was removed from
 the Courseware metadata API. There are some differences between the
 two APIs - courseware returned an error if the course had flags
 preventing it from being loaded in the MFE, and courseHome had a
 second field, can_load_courseware, that returned a boolean.

 This fix unifies the handling of the access fields to behave consistently.

src/courseware/data/thunks.js

@@ -93,7 +93,9 @@ export function fetchCourse(courseId) {
         logError(courseHomeMetadataResult.reason);
       }
       if (fetchedMetadata && fetchedCourseHomeMetadata) {
-        if (courseHomeMetadataResult.value.courseAccess.hasAccess && fetchedOutline) {
+        if (courseHomeMetadataResult.value.courseAccess.hasAccess
+          && courseHomeMetadataResult.value.canLoadCourseware
+          && fetchedOutline) {
           // User has access
           dispatch(fetchCourseSuccess({ courseId }));
           return;