WPLMS Pro update (v.5.21.6)

Update this month:

1. Appstore listing issue modification
2. Add APP unit control
3. Optimize the display of learning progress
4. Optimize the APP page
5. Optimize the function of APP live broadcast module
6. New organization code function
7. Add registration supplementary information
8. New function setting page, mobile phone registration binding, required items, purchase setting function buttons
9. Add custom exam certificate
10. Added My Certificate module, students can download the certificate from the APP My Certificate