fix: Update Gemini safety settings to use 'OFF' as default

web/src/pages/Setting/Model/SettingGeminiModel.js

@@ -10,7 +10,7 @@ import {
 import { useTranslation } from 'react-i18next';
 
 const GEMINI_SETTING_EXAMPLE = {
-  'default': 'BLOCK_NONE',
+  'default': 'OFF',
   'HARM_CATEGORY_CIVIC_INTEGRITY': 'BLOCK_NONE',
 };