Fix: Creating Knowledge Base Support Enter Key (#7258)

### What problem does this PR solve?


[https://github.com/infiniflow/ragflow/issues/7180](https://github.com/infiniflow/ragflow/issues/7180)
When creating a knowledge base, support the enter key
### Type of change

- [x] Bug Fix (non-breaking change which fixes an issue)

web/src/pages/user-setting/setting-model/yiyan-modal/index.tsx

@@ -41,6 +41,12 @@ const YiyanModal = ({
     onOk?.(data);
   };
 
+  const handleKeyDown = async (e: React.KeyboardEvent) => {
+    if (e.key === 'Enter') {
+      await handleOk();
+    }
+  };
+
   return (
     <Modal
       title={t('addLlmTitle', { name: llmFactory })}
@@ -74,21 +80,24 @@ const YiyanModal = ({
           name="llm_name"
           rules={[{ required: true, message: t('yiyanModelNameMessage') }]}
         >
-          <Input placeholder={t('yiyanModelNameMessage')} />
+          <Input
+            placeholder={t('yiyanModelNameMessage')}
+            onKeyDown={handleKeyDown}
+          />
         </Form.Item>
         <Form.Item<FieldType>
           label={t('addyiyanAK')}
           name="yiyan_ak"
           rules={[{ required: true, message: t('yiyanAKMessage') }]}
         >
-          <Input placeholder={t('yiyanAKMessage')} />
+          <Input placeholder={t('yiyanAKMessage')} onKeyDown={handleKeyDown} />
         </Form.Item>
         <Form.Item<FieldType>
           label={t('addyiyanSK')}
           name="yiyan_sk"
           rules={[{ required: true, message: t('yiyanSKMessage') }]}
         >
-          <Input placeholder={t('yiyanSKMessage')} />
+          <Input placeholder={t('yiyanSKMessage')} onKeyDown={handleKeyDown} />
         </Form.Item>
         <Form.Item<FieldType>
           label={t('maxTokens')}