Disabled the use of one slot of trinket, read why.

I opted to disable the use of 1 slot of trinket because:
- Most of players BARELY use 2 trinkets with "use" effects;
- In PvP situations, when you carry a Medallion trinket or something like that, when you engage in combat JPS would just waste the cooldown without being actually cc'ed.
- Removing one of the slots, you can just time better one use of one trinket you might want better control, and using the other slot to a trinket you would want the addon to use.