Localize a CometChat integration — set the UI Kit language, register custom/overridden translations, handle RTL, and never leak a raw localization key into the UI. Cross-family: the mechanism is CometChatLocalize on React, Angular, iOS and Android, while React Native uses CometChatI18nProvider (there is no CometChatLocalize in the RN kit); the exact signature is fetched from each family's localize doc. Triggers: 'translate cometchat', 'change chat language', 'localization', 'i18n', 'RTL / Arabic / Hebrew chat', 'my UI shows group_info instead of a label', 'add a language to cometchat', 'custom translations'.
