Fix NanoUI for admin ghosts.

Also, rename the base state file.

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

@@ -421,4 +421,5 @@ This is the proc mobs get to turn into a ghost. Forked from ghostize due to comp
 
 /mob/dead/observer/canUseTopic()
 	if(check_rights(R_ADMIN, 0))
-		return
+		return 1
+	return

code/modules/nano/nanoui.dm

@@ -475,9 +475,11 @@
   * If the src_object's Topic() returns 1, update all UIs attacked to it.
  **/
 /datum/nanoui/Topic(href, href_list)
-	update_status(0) // update the status
-	if (status != NANO_INTERACTIVE || user != usr) // If UI is not interactive or usr calling Topic is not the UI user
-		return
+	update_status(push_update = 0) // Update the window state.
+	if (status != NANO_INTERACTIVE || user != usr)
+		return // If UI is not interactive or usr calling Topic is not the UI user.
+
+	var/update = src_object.Topic(href, href_list, 0, state) // Call Topic() on the src_object.
 
 	// Code to toggle/update the Map UI.
 	var/map_update = 0
@@ -488,9 +490,8 @@
 		set_map_z_level(text2num(href_list["mapZLevel"]))
 		map_update = 1
 
-	// If we have a src_object and its Topic() returns 1, update.
-	if ((src_object && src_object.Topic(href, href_list, 0, state)) || map_update)
-		SSnano.update_uis(src_object)
+	if ((src_object && update) || map_update)
+		SSnano.update_uis(src_object) // If we have a src_object and its Topic() told us to update.
 
  /**
   * private

code/modules/nano/states/admin.dm

@@ -7,6 +7,6 @@
 /var/global/datum/topic_state/admin_state/admin_state = new()
 
 /datum/topic_state/admin_state/can_use_topic(atom/movable/src_object, mob/user)
-	if (check_rights(R_ADMIN, 0, user))
+	if (check_rights_for(user.client, R_ADMIN))
 		return NANO_INTERACTIVE
 	return NANO_CLOSE

code/modules/nano/states/states.dm

@@ -1,5 +1,5 @@
  /**
-  * NanoUI State
+  * NanoUI States
   *
   * Base state and helpers for states. Just does some sanity checks, implement a state for in-depth checks.
  **/
@@ -68,7 +68,7 @@
 	return ..()
 
 /mob/dead/observer/shared_nano_interaction(atom/movable/src_object)
-	if (check_rights(R_ADMIN, 0, src))
+	if (check_rights_for(client, R_ADMIN))
 		return NANO_INTERACTIVE // Admins can interact anyway.
 	if(!client || get_dist(src_object, src)	> client.view)
 		return NANO_CLOSE // Keep ghosts from opening too many NanoUIs.