feat: Add a note node to the agent canvas #2767 (#2768)

### What problem does this PR solve?

feat: Add a note node to the agent canvas #2767

### 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/github-form/index.tsx

@@ -0,0 +1,20 @@
+import TopNItem from '@/components/top-n-item';
+import { Form } from 'antd';
+import { IOperatorForm } from '../../interface';
+
+const GithubForm = ({ onValuesChange, form }: IOperatorForm) => {
+  return (
+    <Form
+      name="basic"
+      labelCol={{ span: 6 }}
+      wrapperCol={{ span: 18 }}
+      autoComplete="off"
+      form={form}
+      onValuesChange={onValuesChange}
+    >
+      <TopNItem initialValue={5}></TopNItem>
+    </Form>
+  );
+};
+
+export default GithubForm;