[ui] Overview pane disappears when a deployed app is scaled to 0 instances

[thehejik]

Setup

• Epinio version: v1.11.0-rc1
• Epinio UI version: epinio-ui:v1.11.0-0.0.1
• Browser type & version: vivaldi 6.4.3160.42

Describe the bug
When a deployed application is scaled to 0 instance the Overview pane on app detail page disappears.

To Reproduce

• install epinio:v1.11.0-rc1
• deploy any application under Epinio
• scale the app to 0 zero instances on app detail page

Result

• observe the Overview pane with +/- buttons for scaling, once the scaling is done to 0 replicas/pods the pane disappears.

Expected Result
The Overview pane should stay visible even when scaled to 0 instances.

Screenshots

• Before scaling to 0 the Overview pane is visible:
  

• After scaling to 0 the Overview pane is gone:
  

Additional context
If scaled to 0 and the +/- controls disappears user can still use Edit Config to scale it up again.