Various little adjustments relative to the new i18n API

src/login/i18n/withJsx/index.ts

@@ -1,2 +1,3 @@
 export { i18nInitializer } from "./i18nInitializer";
+export type { KcContextLike } from "./useI18n";
 export type { MessageKey as MessageKey_defaultSet } from "../messages_defaultSet/types";

src/login/i18n/withJsx/useI18n.tsx

@@ -12,6 +12,8 @@ export type ReturnTypeOfCreateUseI18n<MessageKey_themeDefined extends string, La
     ofTypeI18n: GenericI18n<MessageKey_defaultSet | MessageKey_themeDefined, LanguageTag_defaultSet | LanguageTag_notInDefaultSet>;
 };
 
+export { KcContextLike };
+
 export function createUseI18n<
     ThemeName extends string = string,
     MessageKey_themeDefined extends string = never,