bunch of misc fixes (#17031)

* bunch of misc fixes

* .

* more refs also new ref tracking from chomp

* oups

* eh

code/modules/mob/living/carbon/alien/life.dm

@@ -2,7 +2,6 @@
 /mob/living/carbon/alien/Life()
 
 	set invisibility = 0
-	set background = 1
 
 	if (transforming)	return
 	if(!loc)			return

code/modules/mob/living/silicon/robot/life.dm

@@ -1,6 +1,5 @@
 /mob/living/silicon/robot/Life()
 	set invisibility = 0
-	set background = 1
 
 	if (transforming)
 		return

code/modules/mob/mob_planes_vr.dm

@@ -42,3 +42,7 @@
 		entopic_users -= my_mob
 		if(my_mob.client)
 			my_mob.client.images -= entopic_images
+
+/mob/Destroy()
+	. = ..()
+	entopic_users -= src