Bring back energy timer cooldown

After all the new graphics update, we lost what i think is a important thing, the timer to know when your energy bar will refill (of 1)
I used to plan my battle/chest by knowing how much i can push, and right now i just feel a bit lost since i don`t know if i have to take a 1 minute or a 10 minute break from game. Please consider adding back the timer of energy restore cooldown