chore(v2): Updating Expo demos to Expo 57/React Native 0.86 (#1021)

Co-authored-by: Simon Binder <simon@journeyapps.com>

Author: Chriztiaan

README.md

@@ -67,7 +67,6 @@ Demo applications are located in the [`demos/`](./demos/) directory. Also see ou
 - [demos/react-native-supabase-group-chat](./demos/react-native-supabase-group-chat/README.md): A React Native group chat example app using a Supabase backend.
 - [demos/react-native-supabase-background-sync](./demos/react-native-supabase-background-sync/README.md): A React Native example app demonstrating background sync using PowerSync, Expo and Supabase.
 - [demos/react-native-web-supabase-todolist](./demos/react-native-web-supabase-todolist/README.md) A React Native to-do list example app using a Supabase backend that's compatible with React Native for Web.
-- [demos/django-react-native-todolist](./demos/django-react-native-todolist/README.md) A React Native to-do list example app using a Django backend.
 
 ### Web