Add Italian translation (#904)

* Add Italian translation

* Add Italian language support to i18n

app/src/i18n/index.ts

@@ -7,6 +7,7 @@ import ptBR from './locales/pt-BR/translation.json';
 import zhCN from './locales/zh-CN/translation.json';
 import zhTW from './locales/zh-TW/translation.json';
 import fr from './locales/fr/translation.json';
+import it from './locales/it/translation.json';
 
 export const SUPPORTED_LANGUAGES = [
   { code: 'en', label: 'English' },
@@ -15,6 +16,7 @@ export const SUPPORTED_LANGUAGES = [
   { code: 'zh-CN', label: '简体中文' },
   { code: 'zh-TW', label: '繁體中文' },
   { code: 'fr', label: 'Français' },
+  { code: 'it', label: 'Italiano' },
 ] as const;
 
 export type LanguageCode = (typeof SUPPORTED_LANGUAGES)[number]['code'];
@@ -30,6 +32,7 @@ i18n
       'zh-CN': { translation: zhCN },
       'zh-TW': { translation: zhTW },
       fr: { translation: fr },
+      it: { translation: it },
     },
     fallbackLng: 'en',
     supportedLngs: SUPPORTED_LANGUAGES.map((l) => l.code),