Inform user if default organization doesn't exist

[ccremer]

Summary

As user
I want to be notified if my configured default organization doesn't exist
So that I'm not using outdated information

Context

Might be considered a bug or simply a case that doesn't yet exist:

• Create an organization, e.g. org-dev
• Set the default organization to org-dev
• Delete namespace/organization org-dev
• Default organization is still set to org-dev, even though no organization exists for the user anymore.

Out of Scope

• Handle organization deletions in the backend. there is more to the decommissioning process of organizations than simply deleting a namespace, e.g. terminating all cost-inducing services etc.

Further links

No response

Acceptance Criteria

No response

Implementation Ideas

We could re-use the first-login-dialog when the portal is visited. There's already a query for all organizations and the current default organization setting. It would be simple to add a text to re-set the default organization to a new one.

The dropdown selection in /user settings page should display the old organization, but not make it further selectable or saveable.