Better UX around deleting Fleet Workspace and Consequences

[richard-cox]

SURE-8441

• When deleting a fleet workspace the UI shows a basic 'Are you sure?' style modal
• Deleting a Fleet workspace also deletes clusters within it, which contradics the light, generic modal
• We need to job around handling this

Possible Solution

• We have more specific and better warnings when deleting other resources (maybe deleting a namespace, deleting a role that has bindings, etc). We could expand that concept to the fleet workspace delete modal

[torchiaf]

@manno Could you help us writing a warning message for the workspaces delete dialog?
I see that Fleet removes all GitRepos in the removed workspaces, but I don't know if there are any other consequences or edge cases.
The message will look like this:

[richard-cox]

The delete is pretty brutal, it will delete v1 prov clusters (aka un-provision them). We should make that clear in the warning. Given this we should probably also make it into a confirmation model (where user is required to input name of resource)