Obscure Mapeo Screen in background when passcode is set.

[ErikSin]

Obscure Screen

When passcode is set and user puts Mapeo in the background the last screen the user was on is still visible. The screen only changes to the passcode screen, hiding the information, when user puts Mapeo in the foreground. Screen should be hidden right away when the app goes in the background

To do

Based off https://github.com/kristiansorens/react-native-flag-secure-android

• [ ] Create native Java Module to turn on flag secure
• [ ] Activate Native module when passcode is turned on, and deactivate when passcode is turned off