It appears that the repository has undergone several changes and renamings:

backend/node_modules/date-fns/locale/hu.js

@@ -1,30 +0,0 @@
-import { formatDistance } from "./hu/_lib/formatDistance.js";
-import { formatLong } from "./hu/_lib/formatLong.js";
-import { formatRelative } from "./hu/_lib/formatRelative.js";
-import { localize } from "./hu/_lib/localize.js";
-import { match } from "./hu/_lib/match.js";
-
-/**
- * @category Locales
- * @summary Hungarian locale.
- * @language Hungarian
- * @iso-639-2 hun
- * @author Pavlo Shpak [@pshpak](https://github.com/pshpak)
- * @author Eduardo Pardo [@eduardopsll](https://github.com/eduardopsll)
- * @author Zoltan Szepesi [@twodcube](https://github.com/twodcube)
- */
-export const hu = {
-  code: "hu",
-  formatDistance: formatDistance,
-  formatLong: formatLong,
-  formatRelative: formatRelative,
-  localize: localize,
-  match: match,
-  options: {
-    weekStartsOn: 1 /* Monday */,
-    firstWeekContainsDate: 4,
-  },
-};
-
-// Fallback for modularized imports:
-export default hu;