Implemented Option - Pickem Style: override user style choice

Individual Pools have the ability to set a specific style for a Pool, however, there are pickem pages like the Hall of Fame and Manage your Pools that are not "pool" specific, so these pages would default to the viewing users style, so as per title, I've added a Global Option that allows you to set a specific style for pickem and then in cases where you want to further override the users style, you can set styles for specific pools. This is similar to how I do it for Sportsbook in that there is a Global override AND individual Category Overrides.