feat: Add base setup for Internationalization(i18n)

apps/web/src/i18n/index.ts

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+import i18n from "i18next";
+import { initReactI18next } from "react-i18next";
+import LanguageDetector from "i18next-browser-languagedetector";
+import Backend from "i18next-http-backend"; 
+
+i18n
+  .use(LanguageDetector) // detects browser language
+  .use(initReactI18next)// passes i18n down to react-i18next
+  .use(Backend) // loads translations asynchoronusly from /locales/{{lng}}/{{ns}}.json
+  .init({
+    fallbackLng: "en", // fallback language
+    debug: true,
+  });
+
+export default i18n;

apps/web/src/i18n/locales/en/translation.json

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+{
+  "welcome": "Welcome",
+  "login": "Login",
+  "logout": "Logout"
+}

apps/web/src/i18n/locales/es/translation.json

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+{
+  "welcome": "Bienvenido",
+  "login": "Iniciar sesión",
+  "logout": "Cerrar sesión"
+}