Visible environment variable

### What problem are you trying to solve?

Not all environment variables needs to be kept secret.

### Describe the solution you'd like

Possibility to mark an environment variable as not "secret", so that current value is visible. "Not secure" environment variables could also be edited, instead of deleted and added again.

### Describe alternatives you've considered

Document the content of environment variables, eg url to API with sample value, so that changing the value is possible by deleting current value and provide a new value.

### Documentation, Adoption, Migration Strategy

_No response_