stylish Roving Focus
fun Modifier.stylishRovingFocus(requester: FocusRequester, index: Int, itemCount: Int, onMove: (Int) -> Unit, onActivate: () -> Unit? = null, onEscape: () -> Unit? = null): Modifier
Adds roving focus behavior to a collection item. Arrow/Home/End keys are handled and the callback receives the target index; the caller owns the requesters so focus remains hoisted.