dotnet
Improve Android device type check to use screen size
Description of Change
For Android visual tests, they should be run with the right device image (currently a Nexus 5X API 30). However, there's no easy way to check the device type for Appium. The check that was there before works on CI since the DEVICE_SKIN environment variable is set there (set by the android.cake script). And it can work locally if folks run android.cake then launch VS from that console session to get the env variable - but it doesn't work if VS is run separately (normal case).
So update this with a different check. Getting the actual Android device type requires using adb. We might eventually do that, but for now just use a screen size check as a proxy for the device type. Also update the failure message to give good instructions.
Issues Fixed
Fixes #
