For the Hive! ghost notification (#4329)

# About the pull request

This PR adds a ghost notification for Acid Runner For the Hive! ability.

# Explain why it's good for the game

Observer QoL

# Testing Photographs and Procedure
<details>
<summary>Screenshots & Videos</summary>

Put screenshots and videos here with an empty line between the
screenshots and the `<details>` tags.

</details>


# Changelog

:cl: Morrow
add: Added a ghost notification for Acid Runner For the Hive! ability.
/:cl:

code/modules/mob/living/carbon/xenomorph/abilities/runner/runner_powers.dm

@@ -146,30 +146,30 @@
 
 
 /datum/action/xeno_action/activable/acider_for_the_hive/use_ability(atom/A)
-	var/mob/living/carbon/xenomorph/X = owner
+	var/mob/living/carbon/xenomorph/xeno = owner
 
-	if(!istype(X))
+	if(!istype(xeno))
 		return
 
-	if(!isturf(X.loc))
-		to_chat(X, SPAN_XENOWARNING("It is too cramped in here to activate this!"))
+	if(!isturf(xeno.loc))
+		to_chat(xeno, SPAN_XENOWARNING("It is too cramped in here to activate this!"))
 		return
 
-	var/area/xeno_area = get_area(X)
+	var/area/xeno_area = get_area(xeno)
 	if(xeno_area.flags_area & AREA_CONTAINMENT)
-		to_chat(X, SPAN_XENOWARNING("You can't activate this here!"))
+		to_chat(xeno, SPAN_XENOWARNING("You can't activate this here!"))
 		return
 
-	if(!X.check_state())
+	if(!xeno.check_state())
 		return
 
 	if(!action_cooldown_check())
 		return
 
-	if(X.mutation_type != RUNNER_ACIDER)
+	if(xeno.mutation_type != RUNNER_ACIDER)
 		return
 
-	var/datum/behavior_delegate/runner_acider/BD = X.behavior_delegate
+	var/datum/behavior_delegate/runner_acider/BD = xeno.behavior_delegate
 	if(!istype(BD))
 		return
 
@@ -178,20 +178,22 @@
 		return
 
 	if(BD.acid_amount < minimal_acid)
-		to_chat(X, SPAN_XENOWARNING("Not enough acid built up for an explosion."))
+		to_chat(xeno, SPAN_XENOWARNING("Not enough acid built up for an explosion."))
 		return
 
-	to_chat(X, SPAN_XENOWARNING("Your stomach starts turning and twisting, getting ready to compress the built up acid."))
-	X.color = "#22FF22"
-	X.set_light_color("#22FF22")
-	X.set_light_range(3)
+	notify_ghosts(header = "For the Hive!", message = "[xeno] is going to explode for the Hive!", source = xeno, action = NOTIFY_ORBIT)
+
+	to_chat(xeno, SPAN_XENOWARNING("Your stomach starts turning and twisting, getting ready to compress the built up acid."))
+	xeno.color = "#22FF22"
+	xeno.set_light_color("#22FF22")
+	xeno.set_light_range(3)
 
 	BD.caboom_trigger = TRUE
 	BD.caboom_left = BD.caboom_timer
 	BD.caboom_last_proc = 0
-	X.set_effect(BD.caboom_timer*2, SUPERSLOW)
+	xeno.set_effect(BD.caboom_timer*2, SUPERSLOW)
 
-	X.say(";FOR THE HIVE!!!")
+	xeno.say(";FOR THE HIVE!!!")
 	return ..()
 
 /datum/action/xeno_action/activable/acider_for_the_hive/proc/cancel_ability()