Update App.jsx

Author: bmarkov

demos/grid/localizations/src/App.jsx

@@ -547,7 +547,7 @@ const Demo = () => {
  try {
  if (locale !== "en") {
  // Dynamically fetch locale JSON for grid localization
- const response = await fetch(`../../../source/locales/${locale}/grid.json`);
+ const response = await fetch(`assets/locales/${locale}/grid.json`);
  if (!response.ok) throw new Error(`HTTP error ${response.status}`);
  const localeData = await response.json();
  grid.setLocale(locale, localeData);