toga_cocoaCamera now checks if NSCameraUsageDescription has been set in pyproject.toml, and (if not) warns if running with dev, and raises a RuntimeError otherwise
Also added an is_bundled property to the coreApp in order to determine whether a warning / error is appropriate
Refactored code in icons.py to use this is_bundled helper property
Added an assertion for is_bundled to test_app_metadata
toga_cocoaCameranow checks ifNSCameraUsageDescriptionhas been set inpyproject.toml, and (if not) warns if running withdev, and raises aRuntimeErrorotherwiseis_bundledproperty to thecoreAppin order to determine whether a warning / error is appropriateicons.pyto use thisis_bundledhelper propertyis_bundledtotest_app_metadataCloses #2589
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