feat: integrate i18next for internationalization support (#65)

* feat: integrate i18next for internationalization support

- Added i18next and react-i18next dependencies for localization.
- Updated various components to utilize translation functions for user-facing text.
- Enhanced user experience by providing multilingual support across the application.

* feat: improve i18n implementation with better translations and accessibility

- Add proper i18n keys for language switcher tooltips and aria-labels
- Replace hardcoded Chinese console error messages with i18n keys
- Add missing translation keys for new UI elements
- Improve accessibility with proper aria-label attributes

---------

Co-authored-by: Jason <farion1231@gmail.com>

src/i18n/index.ts

@@ -0,0 +1,29 @@
+import i18n from "i18next";
+import { initReactI18next } from "react-i18next";
+
+import en from "./locales/en.json";
+import zh from "./locales/zh.json";
+
+const resources = {
+  en: {
+    translation: en,
+  },
+  zh: {
+    translation: zh,
+  },
+};
+
+i18n.use(initReactI18next).init({
+  resources,
+  lng: "en", // 默认语言设置为英文
+  fallbackLng: "en", // 回退语言也设置为英文
+
+  interpolation: {
+    escapeValue: false, // React 已经默认转义
+  },
+
+  // 开发模式下显示调试信息
+  debug: false,
+});
+
+export default i18n;