private void SaveConfig()
{
TomlTable appSettings = Toml.Create();
appSettings.Add("ListenPort", ServerPort);
if (ConfigTable.ContainsKey("Application"))
{
ConfigTable.Remove("Application");
}
ConfigTable.Add("Application", appSettings);
foreach (var item in Items)
{
(item as IConfigViewModel).SaveConfig(ConfigTable);
}
Toml.WriteFile(ConfigTable, CONFIG_FILE);
}