Fixes NanoUI interaction.

A number of machinery objects were returning STATUS_INTERACTIVE instead of parent.
Fixes missing subtype definition for /var/global/datum/topic_state/default/default_state.

code/modules/nano/interaction/base.dm

@@ -9,7 +9,7 @@
 	return list()
 
 /datum/topic_state/proc/can_use_topic(var/src_object, var/mob/user)
-	return STATUS_INTERACTIVE
+	return STATUS_CLOSE
 
 /mob/proc/shared_nano_interaction()
 	if (src.stat || !client)

code/modules/nano/interaction/default.dm

@@ -1,4 +1,4 @@
-/var/global/datum/topic_state/default_state = new()
+/var/global/datum/topic_state/default/default_state = new()
 
 /datum/topic_state/default/href_list(var/mob/user)
 	return list()