Add Japanese localization (#631)

* Update en.ts: add the copyright header

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Copy en.ts to ja.ts for tracking

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Add ja to App.tsx

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Update ja.ts

Reuse https://github.com/etkecc/synapse-admin/blob/752dc7a4cf27a591482b7a14130818c7caf3e5ec/src/i18n/en.ts

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

* Add and enable ra-language-japanese

Available at https://github.com/bicstone/ra-language-japanese

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

---------

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>
Co-authored-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

Author: luixxiul

package.json

@@ -62,6 +62,7 @@
     "vite-plugin-version-mark": "^0.1.4"
   },
   "dependencies": {
+    "@bicstone/ra-language-japanese": "^5.6.3",
     "@emotion/react": "^11.14.0",
     "@emotion/styled": "^11.14.0",
     "@haleos/ra-language-german": "^1.0.0",

src/App.tsx

@@ -16,6 +16,7 @@ import germanMessages from "./i18n/de";
 import englishMessages from "./i18n/en";
 import frenchMessages from "./i18n/fr";
 import italianMessages from "./i18n/it";
+import japaneseMessages from "./i18n/ja";
 import russianMessages from "./i18n/ru";
 import chineseMessages from "./i18n/zh";
 import LoginPage from "./pages/LoginPage";
@@ -35,6 +36,7 @@ const messages = {
   en: englishMessages,
   fr: frenchMessages,
   it: italianMessages,
+  ja: japaneseMessages,
   ru: russianMessages,
   zh: chineseMessages,
 };
@@ -46,6 +48,7 @@ const i18nProvider = polyglotI18nProvider(
     { locale: "de", name: "Deutsch" },
     { locale: "fr", name: "Français" },
     { locale: "it", name: "Italiano" },
+    { locale: "ja", name: "日本語" },
     { locale: "fa", name: "Persian(فارسی)" },
     { locale: "ru", name: "Russian(Русский)" },
     { locale: "zh", name: "简体中文" },

src/i18n/en.ts

@@ -1,3 +1,13 @@
+// SPDX-FileCopyrightText: 2020 Michael Albert
+// SPDX-FileCopyrightText: 2020 - 2024 Manuel Stahl
+// SPDX-FileCopyrightText: 2021 Dirk Klimpel
+// SPDX-FileCopyrightText: 2023 Przemysław Romanik
+// SPDX-FileCopyrightText: 2024 Alexander Tumin
+// SPDX-FileCopyrightText: 2024 - 2025 Borislav Pantaleev
+// SPDX-FileCopyrightText: 2024 - 2025 Nikita Chernyi
+//
+// SPDX-License-Identifier: Apache-2.0
+
 import englishMessages from "ra-language-english";
 
 import { SynapseTranslationMessages } from ".";