Apply Laravel coding style

Shift automatically applies the Laravel coding style - which uses the PSR-12 coding style as a base with some minor additions.

You may customize the code style applied by configuring [Pint](https://laravel.com/docs/pint), [PHP CS Fixer](https://github.com/FriendsOfPHP/PHP-CS-Fixer), or [PHP CodeSniffer](https://github.com/squizlabs/PHP_CodeSniffer) for your project root.

For more information on customizing the code style applied by Shift, [watch this short video](https://laravelshift.com/videos/shift-code-style).

app/Model/helpdesk/Ticket/Ticket_Thread.php

@@ -9,6 +9,7 @@ use Illuminate\Database\Eloquent\Model;
 class Ticket_Thread extends Model
 {
     protected $table = 'ticket_thread';
+
     protected $fillable = [
         'id', 'ticket_id', 'staff_id', 'user_id', 'thread_type', 'poster', 'source', 'is_internal', 'title', 'body', 'format', 'ip_address', 'created_at', 'updated_at',
     ];
@@ -45,7 +46,7 @@ class Ticket_Thread extends Model
     {
         require_once base_path('vendor'.DIRECTORY_SEPARATOR.'htmlpurifier'.DIRECTORY_SEPARATOR.'library'.DIRECTORY_SEPARATOR.'HTMLPurifier.auto.php');
         $path = base_path('vendor'.DIRECTORY_SEPARATOR.'htmlpurifier'.DIRECTORY_SEPARATOR.'library'.DIRECTORY_SEPARATOR.'HTMLPurifier'.DIRECTORY_SEPARATOR.'DefinitionCache'.DIRECTORY_SEPARATOR.'Serializer');
-        if (!File::exists($path)) {
+        if (! File::exists($path)) {
             File::makeDirectory($path, $mode = 0777, true, true);
         }
         $config = \HTMLPurifier_Config::createDefault();