Start implementing per theme variant translations and ability to add extra languages

stories/login/i18n.ts

@@ -1,5 +1,9 @@
-import { createUseI18n } from "../../dist/login";
+import { i18nApi } from "../../dist/login";
+import type { ThemeName } from "../kc.gen";
 
-export const { useI18n, ofTypeI18n } = createUseI18n({});
+export const { useI18n, ofTypeI18n } = i18nApi
+    .withThemeName<ThemeName>()
+    .withTranslations({})
+    .create();
 
 export type I18n = typeof ofTypeI18n;