```bash
% java -jar /Users/user/Downloads/mvmn-kafkagui-0.0.2-SNAPSHOT.jar
```
When I click `Test Connection`, the app says `Connection successful!`, then I click `Connect`, see alert `Connecting` …
When I don't have messages in my topic partitions (assuming I have 100 partitions):
Expected behavior: I instantly can see that there's no messages (button unpressed).
Actual behavior: button stays …