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/esm/construct.js

@@ -0,0 +1,10 @@
+import isNativeReflectConstruct from "./isNativeReflectConstruct.js";
+import setPrototypeOf from "./setPrototypeOf.js";
+function _construct(t, e, r) {
+  if (isNativeReflectConstruct()) return Reflect.construct.apply(null, arguments);
+  var o = [null];
+  o.push.apply(o, e);
+  var p = new (t.bind.apply(t, o))();
+  return r && setPrototypeOf(p, r.prototype), p;
+}
+export { _construct as default };