Don't do visibility checks for OfflinePlayers (#5375)

Co-authored-by: MD <1917406+mdcfe@users.noreply.github.com>

Essentials/src/main/java/com/earth2me/essentials/User.java

@@ -679,6 +679,9 @@ public class User extends UserData implements Comparable<User>, IMessageRecipien
 
     @Override
     public boolean isHiddenFrom(Player player) {
+        if (getBase() instanceof OfflinePlayer || player instanceof OfflinePlayer) {
+            return true;
+        }
         return !player.canSee(getBase());
     }