ui: Add xiso files to loader menu

Author: abaire

ui/xui/popup-menu.cc

@@ -390,7 +390,8 @@ class GamesPopupMenu : public virtual PopupMenu {
                  std::filesystem::directory_iterator(directory)) {
                 const auto &file_path = file.path();
                 if (std::filesystem::is_regular_file(file_path) &&
-                    file_path.extension() == ".iso") {
+                    (file_path.extension() == ".iso" ||
+                     file_path.extension() == ".xiso")) {
                     sorted_file_names.insert(
                         { file_path.stem().string(), file_path });
                 }