install localisation library

src/i18n.ts

@@ -0,0 +1,16 @@
+import NextI18Next from "next-i18next";
+
+import Config from "next/config";
+import path from "path";
+
+const NextI18NextInstance = new NextI18Next({
+  defaultLanguage: "fi",
+  defaultNS: "common",
+  localeSubpaths: Config().publicRuntimeConfig.localeSubpaths,
+  localePath: path.resolve("./public/locales"),
+  otherLanguages: ["en"],
+});
+
+export const { appWithTranslation, useTranslation } = NextI18NextInstance;
+
+export default NextI18NextInstance;