fix source maps folder detection (#777)
fix source maps folder detection (#777)

* fix source maps folder

* fix sourcemap output path

* fix comments

getsentry/react-native-sentry,getsentry/react-native-sentry,getsentry/react-native-sentry,getsentry/react-native-sentry,getsentry/react-native-sentry,getsentry/react-native-sentry