Add class formula redirects to manage_subjects instead of manage_classes

[Schlaumeier5]

Instead of updating the page after entering a new class in ./manage_classes, the formula redirects to /manage_subjects after submitting

[NITESH-DTU]

Hi! I'd be happy to help with this issue. Could I work on it?

[Schlaumeier5]

Hi! I'd be happy to help with this issue. Could I work on it?

@NITESH-DTU sure, tell me if you need any help :)

[NITESH-DTU]

@Schlaumeier5 could you please clarify the file that have this add class functionality,it will be easier for me to tacle the issue then.