1:1 is not a natively supported aspect ratio for CameraX. We had
defaulted to using 4:3 and cropping since most sensors are 4:3.
However, some emulators may use a 16:9 aspect ratio for their
sensor, so we should instead use the aspect ratio which is closest
to the sensor aspect ratio so we maximize support for emulators
while also maximizing the FOV.
1:1 is not a natively supported aspect ratio for CameraX. We had defaulted to using 4:3 and cropping since most sensors are 4:3. However, some emulators may use a 16:9 aspect ratio for their sensor, so we should instead use the aspect ratio which is closest to the sensor aspect ratio so we maximize support for emulators while also maximizing the FOV.