Error popups on trying to delete a project on sandbox due to user limitation

[vrubezhny]

The Delete context menu item should not be shown for a namespace/project if user has no 'delete' permission, f.i. when using sandbox:

Failed to delete Project with error 'Error: Command failed: "~/projects/vscode-openshift-tools/source/vscode-openshift-tools/out/tools/linux/odo" delete namespace XXXy-dev -f -w
 ✗  unable to delete project "XXX-dev": unable to delete project: projects.project.openshift.io "XXX-dev" is forbidden: User "XXX" cannot delete resource "projects" in API group "project.openshift.io" in the namespace "XXX-dev"
'