Missing alternative text on Cancel and Torch buttons

[Erdragh]

Similarly to the iOS implementation, the Torch and Cancel Buttons in this lib do not have alternative text specified, making them appear incorrectly for screen readers.

OSBarcodeLib-Android/src/main/kotlin/com/outsystems/plugins/barcode/view/OSBARCScannerActivity.kt

Lines 755 to 758 in 98d4b8e

	Image(
	painter = icon,
	contentDescription = null,
	modifier = modifier

OSBarcodeLib-Android/src/main/kotlin/com/outsystems/plugins/barcode/view/OSBARCScannerActivity.kt

Lines 730 to 733 in 98d4b8e

	Icon(
	painter = painterResource(id = R.drawable.close),
	contentDescription = null,
	tint = Color.White,