Issue: Enrollment duration is not applied when manually enrolling a user if enrollment option is not expanded.

Steps to Replicate:
-Go into a course
-Course Admin>Enrollment Methods>Manual Enrollments>Settings
-Set and Enable a Default Enrollment Duration
-Go to Enrolled users
-Enroll Users
-Just enrol a user
Result: No end date is applied to the user enrollment

To get the user enrollment duration applied:
-Go to Enrolled Users
-Click the Enrollment Options arrow to drop that menu down
-Make no changes to it (you will see the default is populated)
-Enrol User
-Finish Enrolling users
-End Date is populated