Fix: pt_br translation and adding pt to knoledg-add (#4674)

### What problem does this PR solve?

Fix Portuguese (Brazil) translation
Adding portuguese to Knowledge adding settings.

### Type of change

- [X] Bug Fix (non-breaking change which fixes an issue)
- [X] New Feature (non-breaking change which adds functionality)

---------

Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>

web/src/app.tsx

 import vi_VN from 'antd/locale/vi_VN';
 import zhCN from 'antd/locale/zh_CN';
 import zh_HK from 'antd/locale/zh_HK';
+import pt_BR from 'antd/lib/locale/pt_BR';
 import dayjs from 'dayjs';
 import advancedFormat from 'dayjs/plugin/advancedFormat';
 import customParseFormat from 'dayjs/plugin/customParseFormat';
   zh: zhCN,
   'zh-TRADITIONAL': zh_HK,
   vi: vi_VN,
+  'pt-BR': pt_BR,
 };
 
 const queryClient = new QueryClient();

web/src/locales/en.ts

       upload: 'Upload',
       english: 'English',
       chinese: 'Chinese',
+      portugueseBr: 'Portuguese (Brazil)',
       embeddingModelPlaceholder: 'Please select a embedding model',
       chunkMethodPlaceholder: 'Please select a chunk method',
       save: 'Save',

web/src/locales/pt-br.ts

       searchKnowledgePlaceholder: 'Buscar',
       noMoreData: 'Isso é tudo. Nada mais.',
     },
-    knowledgeDetail: {
+    knowledgeDetails: {
       dataset: 'Conjunto de dados',
       testing: 'Teste de recuperação',
       files: 'Arquivos',
       upload: 'Enviar',
       english: 'Inglês',
       chinese: 'Chinês',
+      portugueseBr: 'Português (Brasil)',
       embeddingModelPlaceholder:
         'Por favor, selecione um modelo de incorporação',
       chunkMethodPlaceholder: 'Por favor, selecione um método de fragmentação',

web/src/pages/add-knowledge/components/knowledge-setting/configuration.tsx

           <Option value="English">{t('english')}</Option>
           <Option value="Chinese">{t('chinese')}</Option>
           <Option value="Vietnamese">{t('vietnamese')}</Option>
+          <Option value="Portuguese (Brazil)">{t('portugueseBr')}</Option>
         </Select>
       </Form.Item>
       <Form.Item