fix: Add empty tip if workspace has no cluster

Created by: leoendless

What type of PR is this?

/kind bug

What this PR does / why we need it:

1. Add an empty tip when the workspace has no authorized cluster.
2. crd list now can only be viewed by platform-admin.
3. fix missing param cluster of project creation in cluster management.
4. fix data fetching in cluster layout wrapper when the cluster isn't ready.