[Test] Create Unit Test for Student Course Folder
Create Unit Tests for All the components in the student->course Folder
Acceptance Criteria
- 
 100% line and branch coverage for student->course->grade-detailComponent
- 
 100% line and branch coverage for student->course->peer-evalComponent
- 
 100% line and branch coverage for student->course->student-peer-evalComponent
- 
 100% line and branch coverage for student->course->course-detailComponent
