File Size Restriction - Frontend bug

[ghost]

Description of Issue

The alert for file size restriction pops up, but the file is still added on the frontend.

The backend doesn't allow the file to run, but the file shouldn't be added in the first place

Acceptance Criteria

• [x] Alert pops up for file size being too big
• [x] File is not added to frontend

[ghost]

Fixed this issue a long time ago, don't remember which commit, but on current develop it is gone