Redo examining in general and tweak getFlatIcon

code/modules/mob/dead/observer/observer.dm

@@ -152,6 +152,13 @@
 	if(new_stat != DEAD)
 		CRASH("It is best if observers stay dead, thank you.")
 
+/mob/observer/dead/examine_icon()
+	var/icon/I = get_cached_examine_icon(src)
+	if(!I)
+		I = getFlatIcon(src, defdir = SOUTH, no_anim = TRUE)
+		set_cached_examine_icon(src, I, 200 SECONDS)
+	return I
+
 /*
 Transfer_mind is there to check if mob is being deleted/not going to have a body.
 Works together with spawning an observer, noted above.