Allow collecting network status state or activating Write mode manually when users may have unstable internet connection

[james.lee]

Hey @pedrowach ,

I made few small improvements on offline mode!

In upcoming release, we're introducing two new fields: "Interval" and "Timeout." These fields enable us to periodically check the network at intervals of X, and then transition to offline mode if the ping doesn't come back within provided Y timeout. (Default to 10 seconds interval and 5 seconds timeout)