Lemurian Sea (#22686)

changes:
  - refactor: "Refactors Gravity Generator UI from HTML to TGUI."
- rscadd: "Adds sector-based modifier var 'overmap_hazards_multiplier'
for generating total overmap hazard count."
  - soundadd: "Adds new Lemurian Sea 'welcome' announcements."
- rscadd: "Added Lemurian Sea gravitic anomalies as overmap hazards and
random events."
  - rscadd: "Adds ADPI/The Voices."
- rscadd: "Adds ADPI Panel for modmins to send ADPI messages to a single
character or all characters from their respective pools, or custom
messages."
- balance: "Vaurca Hivenet communication, the Hivenet Manifest, and
Hivenet Echoes are now disabled while the ship is in Lemurian Sea
sectors."

code/modules/admin/secrets/random_events/gravity.dm

@@ -1,33 +0,0 @@
-/**********
-* Gravity *
-**********/
-/datum/admin_secret_item/random_event/gravity/New()
-	..()
-	name = "Toggle [station_name(TRUE)] Artificial Gravity"
-
-/datum/admin_secret_item/random_event/gravity/can_execute(var/mob/user)
-	if(!(SSticker.mode))
-		return 0
-
-	return ..()
-
-/datum/admin_secret_item/random_event/gravity/execute(var/mob/user)
-	. = ..()
-	if(!.)
-		return
-
-	GLOB.gravity_is_on = !GLOB.gravity_is_on
-	for(var/A in SSmachinery.gravity_generators)
-		var/obj/structure/machinery/gravity_generator/main/B = A
-		B.eventshutofftoggle()
-
-	feedback_inc("admin_secrets_fun_used",1)
-	feedback_add_details("admin_secrets_fun_used","Grav")
-	if(GLOB.gravity_is_on)
-		log_admin("[key_name(user)] toggled gravity on.")
-		message_admins(SPAN_NOTICE("[key_name_admin(user)] toggled gravity on."), 1)
-		command_announcement.Announce("Gravity generators are again functioning within normal parameters. Sorry for any inconvenience.")
-	else
-		log_admin("[key_name(user)] toggled gravity off.")
-		message_admins(SPAN_NOTICE("[key_name_admin(usr)] toggled gravity off."), 1)
-		command_announcement.Announce("Feedback surge detected in mass-distributions systems. Artificial gravity has been disabled whilst the system reinitializes. Further failures may result in a gravitational collapse and formation of blackholes. Have a nice day.")