Description

A/C:  

• Update Code to Adhere to Beta.9 Breaking Changes of JS SDK (for mongodb-university/realm-tutorials/rn)
• Update Docs to Adhere to Beta.9 Breaking Changes of JS SDK (for https://docs.mongodb.com/realm/tutorial/react-native/)

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)