feat: superadmin attribute for extended permissions like impersonating

src/Security/Voter/ImpersonationVoter.php

@@ -40,6 +40,10 @@ class ImpersonationVoter extends Voter
         }
 
         // Admin is the only role allowed to impersonate
-        return $this->security->isGranted('ROLE_ADMIN');
+        if (false === $this->security->isGranted('ROLE_ADMIN')) {
+            return false;
+        }
+
+        return $currentUser->isSuperAdmin();
     }
 }