[iOS] Change from Device orientation to App UI orientation for PreviewLayer #195
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Problem:
Currently on iOS the CameraViewMaui.cs - LayOutSubviews() checks the physical device's orientation and "flips" the camera feed to landscape/portrait mode accordingly. For an app that is locked to portrait-mode this means that the app itself will remain in portrait mode but the camera feed will flip to landscape mode when the phone is "flipped".
How this PR fixes it:
This PR changes the code in LayOutsubviews() to check the app's orientation - locking the camera feed to the same orientation as the app. The camera feed now respects the orientations set in Info.plist.
Code quality:
The code used is taken from the Maui Communitytoolkit's implementation of camera feed orientations, and tested on a physical device (iPhone 12 pro) to make sure it works.