User who doesn't have permissions should not have buttons "Datasets" and "Subsets" on the `/dashboard` page;
Steps:
- Go to "https://sandbox.genesys-pgr.org/dashboard" as not vetted user;
Expected result: If user doesn't have "Dashboard" and "Subset" items on the header he shouldn`t have same buttons on the navigation bar;
Actual result: "Dashboard" and "Subset" buttons are displayed;