Report semantic ProgressBarRangeInfo changes.

[m-sasha]

Currently, we don't report progress bar value changes to the accessibility system.

Proposed Changes

Fire a property change event when the ProgressBarRangeInfo value changes. This is what Swing's JProgressBar does.

Testing

Test: Ran this with VoiceOver on:

fun main() = singleWindowApplication {
    Column {
        var progress by remember { mutableStateOf(0.0f) }

        LinearProgressIndicator(
            progress,
            modifier = Modifier.focusable().height(16.dp)
        )

        LaunchedEffect(progress) {
            if (progress < 1f) {
                delay(2000)
                progress += 0.1f
            }
        }
    }
}