Move API to use JSON:API standards and fractal serializer

Makes the data slightly more complex, but forces a standard and can
always be changed down the road simply by changing the default
serializer.

config/laravel-fractal.php

@@ -13,6 +13,6 @@ return [
     |
     */
 
-    'default_serializer' => Pterodactyl\Extensions\NoDataSerializer::class,
+    'default_serializer' => League\Fractal\Serializer\JsonApiSerializer::class,
 
 ];