fix: replace process.env.NODE_ENV with import.meta.env.DEV

process.env is not available in the browser tsconfig without
@types/node. import.meta.env.DEV is Vite's built-in equivalent.

src/init/i18n/index.ts

@@ -21,7 +21,7 @@ void i18n
   .init({
     resources,
     fallbackLng: "en-GB",
-    debug: process.env.NODE_ENV === "development",
+    debug: import.meta.env.DEV,
 
     interpolation: {
       escapeValue: false, // React already does escaping