replaced allowed mentions with enum

app/Actions/Notifications/DeliverNotificationAction.php

@@ -2,6 +2,7 @@
 
 namespace App\Actions\Notifications;
 
+use App\Enums\DiscordAllowedMentionType;
 use App\Enums\NotificationChannel;
 use App\Enums\NotificationDeliveryStatus;
 use App\Models\NotificationAction;
@@ -21,11 +22,6 @@ class DeliverNotificationAction implements ShouldQueue
 
     private const int DISCORD_CONTENT_LIMIT = 2000;
 
-    /**
-     * @var list<string>
-     */
-    private const array DISCORD_ALLOWED_MENTION_TYPES = ['everyone', 'roles', 'users'];
-
     public int $tries = 3;
 
     public int $timeout = 15;
@@ -318,7 +314,7 @@ class DeliverNotificationAction implements ShouldQueue
                 continue;
             }
 
-            if (! in_array($allowedMention, self::DISCORD_ALLOWED_MENTION_TYPES, true)) {
+            if (! in_array($allowedMention, DiscordAllowedMentionType::values(), true)) {
                 continue;
             }