Removed 2nd grace timer

Version Update

Fix power toggle abuses - vanilla
Fix drones unable to stop firing when power out - vanilla
Fix target clearing - vanilla

Increased lock timer duration
The first action starts a 1.0s timer. This ensures that the drones do not shoot immediately upon spawning

Update for game version 2.0

Update WE3.

Lock all conditions to prevent executing unneeded instructions.

Improved function

Fixed a issue where the tower would be disabled the drone would stay locked at target shooting.
The above fix is true after target is dead, with the current setting the drone are truly vicious, they will make sure that the last target will die with them.

Note: target validation need improvements if improvement is wanted with the current logic.