SettingsNavigationRow
fun SettingsNavigationRow(label: String, onClick: () -> Unit, theme: NavigationSettingsTheme, subtitle: String? = null)
Clickable row with a label, optional subtitle, and a right-arrow chevron.
Use for navigation to sub-screens (e.g. per-transport route settings).
Parameters
label
Primary text.
onClick
Called when the user taps the row.
theme
Color and typography tokens.
subtitle
Secondary text shown below label, or null to hide.