Save the "Lecture On View" in sessionStorage.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Initially set up "Course Page".
The specific Course Page can be viewed by either typing the link
directly or navigating from the list of courses in Profile.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Add missing committed files for last commit.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Fix authentication check for "Course Page".

Signed-off-by: tungpham31 <tungpham31@gmail.com>