Part of broker Information shows undefined on the Dashboard Page #385
Description
How to reproduce
mvn clean package -Dmaven.test.skip=true
java -jar target/rocketmq-dashboard-1.0.1-SNAPSHOT.jar
visit localhost:8082
Root Cause
On ./frontend-new/src/pages/Dashboard/DashboardPage.jsx, it use broker.index in line:273 when rendering this chart. However, there isn't index field in broker obejct.
