Add internationalization support with astro-i18next integration

- Implemented astro-i18next for multi-language support, including English, Dutch, and Italian.
- Configured default locale and language fallback settings.
- Defined routes for localized content in the configuration.
- Updated package.json and package-lock.json to include new dependencies for i18next and related plugins.

node_modules/@babel/runtime/helpers/toConsumableArray.js

@@ -0,0 +1,8 @@
+var arrayWithoutHoles = require("./arrayWithoutHoles.js");
+var iterableToArray = require("./iterableToArray.js");
+var unsupportedIterableToArray = require("./unsupportedIterableToArray.js");
+var nonIterableSpread = require("./nonIterableSpread.js");
+function _toConsumableArray(r) {
+  return arrayWithoutHoles(r) || iterableToArray(r) || unsupportedIterableToArray(r) || nonIterableSpread();
+}
+module.exports = _toConsumableArray, module.exports.__esModule = true, module.exports["default"] = module.exports;