Notifications extension plugin for Expo

This plugin handles moving the necessary files into their respective iOS directories

Steps

ios

1. Update entitlements
2. Set the app group to group.<identifier>
3. Add the extension plist
4. Add the view controller
5. Update the xcode project's build phases

Credits

Adapted from https://github.com/andrew-levy/react-native-safari-extension and https://github.com/timedtext/expo-config-plugin-ios-share-extension/blob/master/src/withShareExtensionXcodeTarget.ts