Add Airline ICAO to Subfleet selectBoxList (#1153)

* Add Airline ICAO to Subfleet selectBoxList

Subfleet dropdown at flight search will look like `Boeing B737-800 WL | THY`

* StyleFix

app/Repositories/SubfleetRepository.php

@@ -41,7 +41,7 @@ class SubfleetRepository extends Repository implements CacheableInterface
         }
 
         foreach ($items as $i) {
-            $retval[$i->id] = $i->name;
+            $retval[$i->id] = $i->name.' | '.$i->airline->icao;
         }
 
         return $retval;