Reauth params in config

exam/classes/Config/Config.php

@@ -61,4 +61,14 @@ class Config
   {
     return Config::getInstance()->database;
   }
+
+  public static function getTokenExpiry(): string
+  {
+    return Config::getInstance()->app["tokenExpiry"];
+  }
+
+  public static function getRefreshTokenExpiry(): string
+  {
+    return Config::getInstance()->app["refreshTokenExpiry"];
+  }
 }