Fix syntax error in RNSVGImageShadowNode::initialStateData

[hsjoberg]

Summary

This PR solves #2077.
I'm too bad at C++ to know whether this is idiomatic code, however.

Checklist

• I have tested this on a device and a simulator

[WoLewicki]

Could you answer the comment? Besides this, the PR looks correct, thanks!

[hsjoberg]

Alright, I've changed to {} instead.

[khanakia]

Can we merge it soon please? I am unable to upgrade my react-native to 0.72.1 version because of this issue

[hsjoberg]

@khanakia If you need this fix immediately you can change your package.json like this, which will point to the commit in this PR:

"react-native-svg": "git+https://github.com/hsjoberg/react-native-svg.git#7ac1a17c4bce907be46c349f345a29b439c5e3dd",

But don't forget to change back to an official react-native-svg version once this one gets merged and published.

[khanakia]

Thanks

[WoLewicki]

Thanks for your contribution 🚀

[Happy-2002]

Solution
Please remove {} in this line -- return {imageSource, {imageSource, nullptr,{}}};
Replace -- return {imageSource, {imageSource, nullptr,}};