Show environment in console's nav bar

### Is your proposal related to a problem?

Yes. There's no way of telling which environment is being used when using the web console.

### Describe the solution you'd like

Would be nice to have the endpoint in the nav bar and, ideally, a way of setting the nav bar color to red when using the prod environment (the same way https://chrome.google.com/webstore/detail/extension-for-aws-sso/ejjegcnihofdahmbbhekhkcnpflljeej does it for the AWS console).