CleanBrowsing (< Android 9)

Jun 18, 2021

Fixes include:
- Addressed copy / paste bug when using USERCODE
- Created new service to track active interface. An issue when switching between WiFi and Cell service and not restarting the app. Now the app doesn't have to be restarted and the active interface is tracked.
- Add option to reconfigure profile_code after it's been set.