Refactor API and database interactions: enhance token management, improve entry handling, and add application name retrieval

public/html_loader.php

@@ -60,6 +60,12 @@ class HTMLLoader {
         $page = $json[$template];
         $html = file_get_contents(TEMPLATE_PATH . $page["dir_name"] . "/" . $page["html_file"]);
 
+        $app_name = file_get_contents("http://" . APP_DOMAIN . "/api/settings/appname.php");
+        $app_name = json_decode($app_name, true);
+        $app_name = $app_name["data"]["application_name"];
+
+        $html = str_replace("%appname%", $app_name, $html);
+
         // Get CSS
         $css = "";