Demo Hotfix - 8/5

A few small QoL enhancements and bugfixes for the Tyrants Must Fall demo today. Updates: Added a "Self-Target" preview graphic for abilities that target the user.Unit Tooltips will now display the exact amount of damage or healing an ability will deal.FixesFixed error where players could potentially un-deploy a unit mid battle.Reduced Enforcer Jurgal's overzealous use of Take Cover