Workspace deletion was broken because workspace schema deletion should
be "CASCADE". Otherwise postgres will refuse to remove a schema with
existing tables
Also, user experience on delete was degraded because of redirect race
condition:
- we were redirecting to /welcome on deletion
- also redirecting to /settings/profile as the system detects
missingPermissionFlag
I'm disabling permission check if the user is not logged in as it does
not makes sense. I don't think this is a big issue but we will likely
revisit this later if we face race condition between Permission checks
redirect and PageChangeEffect. This could also be migrated fairly easily
to PageChangeEffect where we make sure that we only redirect once
