Lint PHP code psr-12, add GH action

app/Providers/HorizonServiceProvider.php

@@ -35,7 +35,7 @@ class HorizonServiceProvider extends HorizonApplicationServiceProvider
     {
         Gate::define('viewHorizon', function ($user) {
             return in_array($user->email, [
-                'julien@notionforms.io'
+                'julien@notionforms.io',
             ]);
         });
     }