Current elixir timer does not replace with a new timer

[Jairus980]

Sometimes we accidentally open new elixir whilst our current is still active. Not an issue tho but when opening new one, the timer did not replace to a newer one. Instead it uses your current. So if you have 2mins speed left, open new speed elixer and timer show 2mins left instead of 30mins.
Fix this issue. It will not stack but opening new one whilst current is about to finish should replace to a newer timer.

Elite runner elixir and normal elixir;
- speed
- damage reduction
- damage
- luck
- xp