refactor: #1424 Add parent class to contribution events
refactor: #1424 Add parent class to contribution events

- Add platform to pre-existing contribution events

elimu-ai/webapp,elimu-ai/webapp,elimu-ai/webapp,literacyapp-org/literacyapp-web,literacyapp-org/literacyapp-web,elimu-ai/webapp,literacyapp-org/literacyapp-web,literacyapp-org/literacyapp-web