[ios] Fix crash when center is nan (empty bounds)
[ios] Fix crash when center is nan (empty bounds)

msand/react-native-svg,msand/react-native-svg,magicismight/react-native-svg,react-native-community/react-native-svg,react-native-community/react-native-svg,magicismight/react-native-svg,magicismight/react-native-art-svg,magicismight/react-native-art-svg,msand/react-native-svg,magicismight/react-native-svg,magicismight/react-native-svg,msand/react-native-svg,react-native-community/react-native-svg,react-native-community/react-native-svg,react-native-community/react-native-svg,magicismight/react-native-svg