Couple borg UI fixes.

-Fixes missing default module UI icons.
-Fixes the UI mudule icons breaking on relog. (oh please who the fuck puts a ..() at the top when the parent proc is nothing but a single return???)

code/_onclick/hud/robot.dm

@@ -276,6 +276,6 @@ var/obj/screen/robot_inventory
 		r.client.screen -= r.robot_modules_background
 
 /mob/living/silicon/robot/update_hud()
-	..()
 	if(modtype)
 		hands.icon_state = lowertext(modtype)
+	..()