replace RN AsyncStorage with community package

[usrbowe]

Fixes #349

Replace deprecated 'react-native' AsyncStorage module with community package.

For RN60+

[calumpeak]

@usrbowe thanks for this - Im not massively familiar with RN so thank you for bringing this to our attention. These kinds of issues are something we want to me more pluggable/easily fixable with V3.

[calumpeak]

@sorodrigo when you get a chance 👍

[sorodrigo]

I removed the @react-native-community/async-storage because it's an optional dependency that should be installed externally, same as NetInfo and react-native.

[sorodrigo]

Also I changed the tag so it's not constantly changing, now the Native tag is native. Before it was native.0 apologies.