adds missing SIGNAL_HANDLERs (#17585)

* adds missing SIGNAL_HANDLERs

Added missing SIGNAL_HANDLER lines to many RegisterSignal() proc refs.

* Oopsies

code/game/objects/items.dm

@@ -788,7 +788,7 @@ modules/mob/living/carbon/human/life.dm if you die, you will be zoomed out.
 /obj/item/var/ignore_visor_zoom_restriction = FALSE
 
 /obj/item/proc/zoom(var/mob/living/M, var/tileoffset = 14,var/viewsize = 9) //tileoffset is client view offset in the direction the user is facing. viewsize is how far out this thing zooms. 7 is normal view
-
+	SIGNAL_HANDLER
 	if(isliving(usr)) //Always prefer usr if set
 		M = usr
 

code/game/objects/items/antag_spawners.dm

@@ -34,6 +34,7 @@
 	Q.query()
 
 /obj/item/antag_spawner/proc/get_winner()
+	SIGNAL_HANDLER
 	if(Q && Q.candidates.len)
 		var/mob/observer/dead/D = Q.candidates[1]
 		spawn_antag(D.client, get_turf(src))

code/game/objects/items/devices/communicator/UI_tgui.dm

@@ -43,6 +43,7 @@
 // Parameters: None
 // Description: This refreshes the camera location
 /obj/item/communicator/proc/update_active_camera_screen()
+	SIGNAL_HANDLER
 	if(!video_source?.can_use())
 		show_static()
 		return

code/game/objects/items/devices/gps.dm

@@ -113,6 +113,7 @@ GLOBAL_LIST_EMPTY(GPS_list)
 	return (target.z in reachable_z_levels)
 
 /obj/item/gps/proc/update_compass(var/update_compass_icon)
+	SIGNAL_HANDLER
 	compass.hide_waypoints(FALSE)
 	var/turf/my_turf = get_turf(src)
 	for(var/thing in tracking_devices)

code/game/objects/items/weapons/capture_crystal.dm

@@ -336,6 +336,7 @@
 
 //The clean up procs!
 /obj/item/capture_crystal/proc/mob_was_deleted()
+	SIGNAL_HANDLER
 	UnregisterSignal(bound_mob, COMSIG_PARENT_QDELETING)
 	UnregisterSignal(owner, COMSIG_PARENT_QDELETING)
 	bound_mob.capture_caught = FALSE
@@ -346,6 +347,7 @@
 	update_icon()
 
 /obj/item/capture_crystal/proc/owner_was_deleted()
+	SIGNAL_HANDLER
 	UnregisterSignal(owner, COMSIG_PARENT_QDELETING)
 	owner = null
 	active = FALSE

code/game/objects/items/weapons/id cards/cards.dm

@@ -283,6 +283,7 @@
 		RegisterSignal(src, COMSIG_OBSERVER_MOVED, PROC_REF(check_loc))
 
 /obj/item/card/id/cargo/miner/borg/proc/check_loc(atom/movable/mover, atom/old_loc, atom/new_loc)
+	SIGNAL_HANDLER
 	if(old_loc == R || old_loc == R.module)
 		last_robot_loc = old_loc
 	if(!istype(loc, /obj/machinery) && loc != R && loc != R.module)

code/game/objects/items/weapons/id cards/id_stacks.dm

@@ -304,6 +304,7 @@
 		RegisterSignal(src, COMSIG_OBSERVER_MOVED, PROC_REF(check_loc))
 
 /obj/item/card/id/exploration/borg/proc/check_loc(atom/movable/mover, atom/old_loc, atom/new_loc)
+	SIGNAL_HANDLER
 	if(old_loc == R || old_loc == R.module)
 		last_robot_loc = old_loc
 	if(!istype(loc, /obj/machinery) && loc != R && loc != R.module)

code/game/objects/structures/ghost_pods/ghost_pods.dm

@@ -30,6 +30,7 @@
 	Q.query()
 
 /obj/structure/ghost_pod/proc/get_winner()
+	SIGNAL_HANDLER
 	busy = FALSE
 	var/deletion_candidate = FALSE
 	if(Q && Q.candidates.len) //Q should NEVER get deleted but...whatever, sanity.