Remove database app_name and app_uuid (#7562)

- Remove database app_name, app_uuid
  - This is handled automatically by the database class
- Remove redundant database::new()

resources/header.php

@@ -27,9 +27,6 @@
 //includes files
 	require_once __DIR__ . "/require.php";
 
-//connect to the database if not initialized
-	$database = database::new();
-
 //set the domains session
 	if (!isset($_SESSION['domains'])) {
 		$domain = new domains();