Update the Android app icon to use the Attik logo

Users want the Attik Mobile app icon shown on Android devices to use the Attik logo instead of the current icon. They want the app to look clearly branded and recognizable on the home screen and in the app drawer so it matches the Attik experience more consistently.

Why it matters: A clear Attik-branded app icon makes the mobile app easier to identify and gives users a more polished, trustworthy first impression.