feat: add sort option to station search form

tests/Feature/Livewire/StationSearchTest.php

@@ -24,6 +24,7 @@ it('validates search is required', function () {
 it('validates fuelType is required', function () {
     Livewire::test(StationSearch::class)
         ->set('search', 'SW1A 1AA')
+        ->set('fuelType', '')
         ->call('findStations')
         ->assertHasErrors(['fuelType' => 'required']);
 });