https://linear.app/comm/issue/ENG-10256/upgrade-react-native-to-080-and-expo-to-sdk-53
Breaking change in RN 0.77: BackHandler.removeEventListener was removed. Simply replace it with calling remove() on returned subscription.
Depends on D14994
https://linear.app/comm/issue/ENG-10985/final-testing
Rebase
Rebase & review changes