REPORT-70746 更新日志的显示逻辑优化

耗时操作放到action里，避免ui阻塞

designer-base/src/main/java/com/fr/design/update/actions/NewFeatureAction.java

@@ -15,11 +15,11 @@ import java.awt.event.ActionListener;
  * */
 public class NewFeatureAction implements ActionListener {
 
-    private String url = CloudCenter.getInstance().acquireConf("fr.latest.update.detail", "https://help.fanruan.com/finereport/doc-view-4699.html");
 
     @Override
     public void actionPerformed(ActionEvent e) {
         try {
+            String url = CloudCenter.getInstance().acquireConf("fr.latest.update.detail", "https://help.fanruan.com/finereport/doc-view-4699.html");
             BrowseUtils.browser(url);
         } catch (Exception ex) {
             FineLoggerFactory.getLogger().error(ex.getMessage());