feat: add icon to title of operator form #918 (#1413)

### What problem does this PR solve?
feat: add icon to title of operator form #918


### Type of change

- [x] New Feature (non-breaking change which adds functionality)

web/src/pages/flow/rewrite-question-form/index.tsx

@@ -11,8 +11,8 @@ const RewriteQuestionForm = ({ onValuesChange, form }: IOperatorForm) => {
   return (
     <Form
       name="basic"
-      labelCol={{ span: 6 }}
-      wrapperCol={{ span: 18 }}
+      labelCol={{ span: 4 }}
+      wrapperCol={{ span: 20 }}
       onValuesChange={onValuesChange}
       autoComplete="off"
       form={form}