The cancel button is missing in the Gateway Settings page
Created by: liuyp2018
Describe the bug
Unable to exit the popup page due to the lack of a cancel button
Versions used(KubeSphere/Kubernetes)
KubeSphere: v3.1.1
Kubernetes: (If KubeSphere installer used, you can skip this)
/kind bug
/area console
/assign @harrisonliu5
/priority medium