Version 1.2.0

new features

problem management
1. Added preview function.
2. You can now create a certificate as a teaching aid.
3. You can now upload YouTube videos as teaching materials.
4. A constraint function has been added that allows you to access the next material after viewing/passing a material.
5. A search function for teaching materials has been added.
Grades
1. Commentary has been added to the grade details CSV.
Settings
1. You can now choose to show or not show your results to members.
2. You can now choose whether or not to send the email that is sent when you invite a member.

functional improvement

side menu
1.Changed the menu name.
problem management
1.Changed the UI.
Manage Members
1. Changed so that when deleting the last group in group editing, a warning message is displayed and it cannot be deleted.
2. Removed "Unattached" from the group to be selected when inviting a group.

Bug Fixes

1. Resolved the issue where Wordbooks are not marked as read.