Update Demo dependencies to latest

[GuyKh]

Updated dependencies:

 prop-types                  ~15.6.1  →  ~15.7.2   
 react                        16.3.1  →  16.13.1   
 react-native                 0.55.3  →   0.63.3   
 react-native-animatable      ~1.2.4  →   ~1.3.3   
 react-native-fbsdk           ~0.7.0  →   ~2.0.0   
 react-native-google-signin  ~0.12.0  →   ~2.1.1   
 react-navigation             ~2.0.1  →   ~4.4.1   
 babel-jest                   22.4.3  →   26.3.0   
 babel-preset-react-native     4.0.0  →    4.0.1   
 jest                         22.4.3  →   26.4.2   
 react-test-renderer          16.3.1  →  16.13.1