FuelPriceWidget now uses AppIntentConfiguration with a per-widget
FuelBoardWidgetConfigurationIntent (fuel + sort). Each widget placed on
the home screen carries its OWN fuel type (Unleaded/Premium/Diesel) and
ordering (Cheapest/Closest), edited by long-press -> Edit Widget —
independent of the app's selection, so multiple widgets can show
different data side by side. Widget no longer reads the app's selected
fuel. 35 tests pass.
- FuelType labels: 'Unleaded (E10)'/'Premium (E5)' -> 'Unleaded'/'Premium'
- New DistanceUnit (miles/km) preference; all app + widget distances,
radii and alert text convert/display in the chosen unit
- Settings tab (4th tab): segmented miles/km picker, 'Show introduction'
replay button (onboarding moved out of Alerts tab), StoreKit tip £4.99
- ProximityMonitor + widget notifications use the chosen unit
- Tests: label expectations updated, DistanceUnit conversion + format tests