make updateSession async

src/Entity/Browser/Container/Tab.php

@@ -251,6 +251,10 @@ class Tab
     }
 
     public function updateSession(): void
+    {
+        $pid = pcntl_fork();
+
+        if ($pid === 0)
         {
             $this->container->browser->database->cleanSession();
 
@@ -260,5 +264,8 @@ class Tab
                     $page->navbar->request->getValue()
                 );
             }
+
+            exit;
+        }
     }
 }