Update Compatible Trainers pages

Suggested changes for the Compatible Trainers pages:

  1. Add a column that says if the trainer is allowed in hardware-enforced events. Users who intend to race should be guided to trainers that are allowed, so they don’t experience the disappointment of buying a “compatible” trainer that they’re not allowed to use.

  2. I noticed that the Zwift Hub and Jetblack Volt are not listed as compatible direct drive trainers, which is probably a sign that the pages need various updates.