fix: Use react-native-webview instead of reaction-native/webview

[MonchiLin]

Warning Please use the react-native-community/react-native-webview fork of this component instead. To reduce the surface area of React Native, <WebView/> is going to be removed from the React Native core. For more information, please read The Slimmening proposal.

reference: https://facebook.github.io/react-native/docs/webview.html

[MonchiLin]

@justinwride Hey brother, I just released it in my fork's repo.
https://github.com/MonchiLin/react-native-qrcode/releases/tag/v0.2.9

[imdadatgol]

There is another package based on this one, with correct Webview https://github.com/imdadatgol/react-native-qrcode-genetor