Use storage url from .plist file if not setStorageUrl() hasn't been called.
Use storage url from .plist file if not setStorageUrl() hasn't been called.

- Fix weird error that NSError is not KVC compliant when storage is not configured
JS
- Fixed code seems to exist on several more locations but has not been fixed,
since there are no tests to ensure I don't break anything.

sraka1/react-native-firestack,tegument/react-native-firestack,tegument/react-native-firestack,fullstackreact/react-native-firestack,fullstackreact/react-native-firestack,sraka1/react-native-firestack,tegument/react-native-firestack,fullstackreact/react-native-firestack,fullstackreact/react-native-firestack,sraka1/react-native-firestack,tegument/react-native-firestack,sraka1/react-native-firestack