Add the file

packages/shared-components/src/utils/i18nContext.ts

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+/*
+Copyright 2025 Element Creations Ltd.
+
+SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
+Please see LICENSE files in the repository root for full details.
+*/
+
+import { createContext, useContext } from "react";
+import { type I18nApi } from "@element-hq/element-web-module-api";
+
+export const I18nContext = createContext<I18nApi | null>(null);
+I18nContext.displayName = "I18nContext";
+
+export function useI18n(): I18nApi {
+    const i18n = useContext(I18nContext);
+
+    if (!i18n) {
+        throw new Error("useI18n must be used within an I18nContext.Provider");
+    }
+
+    return i18n;
+}