IssueTracker

Component used: Wear Compose
Version used: 1.0.1

I don't have a full explanation, but it seems that top level elements in Scaffold interfere with talkback. PositionIndicator, TimeText, full screen composables, but I'm guessing as I'm not sure what is going on. It makes it hard to reconcile the results from a11y testing with composeTestRule with actual manual testing.

It seems that A11y treats them as a single item because the bounds are all the same (full screen). But I'm not sure.

One example changing https://github.com/google/horologist/blob/main/audio-ui/src/main/java/com/google/android/horologist/audio/ui/VolumeScreen.kt to add semantics to the VolumePositionIndicator corrects the behavour ("7% slider" -> "volume 1"), but disables the buttons on the screen.

```
        val volumeState = volume()
        Stepper(
            value = volumeState.current.toFloat(),
            onValueChange = { if (it > volumeState.current) increaseVolume() else decreaseVolume() },
            steps = volumeState.max - 1,
            valueRange = (0f..volumeState.max.toFloat()),
            increaseIcon = {
                increaseIcon()
            },
            decreaseIcon = {
                decreaseIcon()
            }
        ) {
            DeviceChip(
                modifier = Modifier.padding(horizontal = 18.dp),
                volumeState = volumeState,
                audioOutput = audioOutput,
                onAudioOutputClick = onAudioOutputClick
            )
        }
        if (showVolumeIndicator) {
            VolumePositionIndicator(
                modifier = Modifier.semantics {
                    contentDescription = "Volume ${volumeState.current}"
                },
                volumeState = volume,
                autoHide = false
            )
        }
    }
```