#355 Calculate distance button (#366)

* #355 Calculate distance button in add/edit Flight page

* Styling

* Move add/edit flight logic out of controller and into service layer

* Styling

* Formatting

* Run styleci against modules dir

* Styleci config

* Style fixes in /modules

app/Http/Resources/AirportDistance.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace App\Http\Resources;
+
+class AirportDistance extends Response
+{
+    public function toArray($request)
+    {
+        $res = parent::toArray($request);
+        $res['distance'] = $res['distance']->getResponseUnits();
+
+        return $res;
+    }
+}