'No connection' gets shown on fresh open

[leonardo2204]

Once I open the app for the first time (fresh start) the No Connection toast is shown at the bottom.
Happened on my Android, not sure if it is happening on iOS.

[birkir]

Good call.
I was thinking if a package like https://github.com/rgommezz/react-native-offline would be better suited to detect if it's offline.

I've also seen this when the app is in the background and moved to the foreground for a short amount of time.

[leonardo2204]

Gonna dig a little further on this lib.
I was thinking about maybe setting the isConnected flag to true as default, but i`m not sure if this is going to work...

[leonardo2204]

@birkir #10