Fix "Is Wifi Connected" Logic: Newer Android Versions No Longer Behave Correctly

[epicstar]

The Is Wifi Connected Logic in AndroidWifiChecker.kt no longer works correctly in newer versions of the OS. This is because the calls we are using to determine the wifi state is deprecated.

Please fix.

[epicstar]

Here is are proposed solutions on SO: https://stackoverflow.com/questions/3841317/how-do-i-see-if-wi-fi-is-connected-on-android?answertab=modifieddesc#tab-top

However, we may want to research this a little further.