Refactored fire_act (#19158)

Refactored fire_act() to be in line with TG version, removed useless
parameter, added signal, made non sleepable and forced to call parent.
Added atom_act.dm file for the various *_act procs.

code/modules/reagents/reagent_containers/food/cans.dm

@@ -220,10 +220,10 @@
 	detonate(TRUE)
 	. = ..()
 
-/obj/item/reagent_containers/food/drinks/cans/fire_act()
+/obj/item/reagent_containers/food/drinks/cans/fire_act(exposed_temperature, exposed_volume)
 	if(can_light())
 		fuselit = TRUE
-		detonate(FALSE)
+		INVOKE_ASYNC(src, PROC_REF(detonate), FALSE)
 		visible_message(SPAN_WARNING("<b>\The [name]'s fuse catches on fire!</b>"))
 	. = ..()
 

code/modules/reagents/reagent_dispenser.dm

@@ -220,7 +220,7 @@
 
 	..()
 
-/obj/structure/reagent_dispensers/fueltank/fire_act(datum/gas_mixture/air, temperature, volume)
+/obj/structure/reagent_dispensers/fueltank/fire_act(temperature, volume)
 	if (is_leaking)
 		ex_act(2.0)
 	else if (temperature > T0C+500)