feat: add llm Select to KeywordExtractForm #918 (#1492)

### What problem does this PR solve?

feat: add llm Select to KeywordExtractForm #918

### Type of change


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

web/src/pages/flow/canvas/node/index.less

@@ -57,3 +57,10 @@
   text-align: center;
   // align-items: center;
 }
+
+.jsonView {
+  word-wrap: break-word;
+  overflow: auto;
+  max-width: 300px;
+  max-height: 500px;
+}

web/src/pages/flow/canvas/node/popover.tsx

@@ -7,6 +7,8 @@ import 'react18-json-view/src/style.css';
 import { Operator } from '../../constant';
 import { useReplaceIdWithText } from '../../hooks';
 
+import styles from './index.less';
+
 interface IProps extends React.PropsWithChildren {
   nodeId: string;
 }
@@ -32,7 +34,7 @@ const NodePopover = ({ children, nodeId }: IProps) => {
         <JsonView
           src={replacedOutput}
           displaySize={30}
-          style={{ maxWidth: 300, maxHeight: 500 }}
+          className={styles.jsonView}
         />
       </div>
     ) : undefined;