[starter-kit-app] - Catch when API is down/ Internet is not available

[smolinari]

When the API is down or Internet is not available, any app should first show that connectivity is missing. It should show its spinner with a message like "Either Internet is not available or the connection to the server is broken. Please try again later."

Have a button to retry also with a timer for activation of the button. (to avoid all users hitting it and causing a flood to the restarted server).

Maybe also have a countdown to auto-retry and increase the countdown timing for every attempt by 30 seconds (or something similar).

Scott