With the implementation of NDS-205, stack services will enter error states for a variety of reasons (e.g., hitting memory or CPU limits). When the stack service is in an error state, the stack will also be in an error state. Currently, it isn't possible to stop a stack in an error state and it appears to be "spinning" or hung until manually stopped via CLI.

This task encompasses work required to:

• Enable "Stop stack" button when stack is in an error state
• Disable spinning cursor when stack is in an error state

To repeat, use ndslabs/apiserver:NDS-205 image and one of the service specs from https://github.com/craig-willis/ndslabs-specs/tree/NDS-205/test, such as "memhog.json" or "baddep.json".