Next progress.

- Added a Toggle Menu for auto updates.

- Left / Right can now scroll on grid to the last / next row.

- Check on MainScreen constructor, if UniStore is valid. If not, download Universal-DB, if not found.

- Reworked the menus some bit.

- Update Screenshots.

source/utils/lang.cpp

@@ -31,7 +31,7 @@
 static nlohmann::json appJson;
 
 std::string Lang::get(const std::string &key) {
-	if (!appJson.contains(key)) return "";
+	if (!appJson.contains(key)) return key;
 
 	return appJson.at(key).get_ref<const std::string&>();
 }