feat: Arrange the form of generate, categorize, switch, retrieval operators vertically #1739 (#2800)

### What problem does this PR solve?

feat: Arrange the form of generate, categorize, switch, retrieval
operators vertically #1739

### Type of change

- [ ] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)
- [ ] Documentation Update
- [ ] Refactoring
- [ ] Performance Improvement
- [ ] Other (please describe):

web/src/pages/flow/form/generate-form/index.tsx

@@ -13,11 +13,10 @@ const GenerateForm = ({ onValuesChange, form, node }: IOperatorForm) => {
   return (
     <Form
       name="basic"
-      labelCol={{ span: 10 }}
-      wrapperCol={{ span: 14 }}
       autoComplete="off"
       form={form}
       onValuesChange={onValuesChange}
+      layout={'vertical'}
     >
       <Form.Item
         name={'llm_id'}