Move hash subscriber to the listener namespace.

src/Bundle/Resources/config/listeners.yml

@@ -69,7 +69,7 @@ services:
       - { name: 'kernel.event_listener', event: 'netzmacht.contao_leaflet.mapper.convert_to_geojson', method: 'handle' }
 
   netzmacht.contao_leaflet.listeners.hash_subscriber:
-    class: Netzmacht\Contao\Leaflet\Subscriber\HashSubscriber
+    class: Netzmacht\Contao\Leaflet\Listener\HashSubscriber
     tags:
       - { name: 'kernel.event_subscriber' }
 

src/Listener/HashSubscriber.php

@@ -10,7 +10,7 @@
  * @filesource
  */
 
-namespace Netzmacht\Contao\Leaflet\Subscriber;
+namespace Netzmacht\Contao\Leaflet\Listener;
 
 use Netzmacht\Contao\Leaflet\Event\GetHashEvent;
 use Symfony\Component\EventDispatcher\EventSubscriberInterface;