Fire extinguishers no longer spray when put away with safety off (#39765)

yet another in a long line of pointless QoL changes

code/game/objects/structures/extinguisher.dm

@@ -59,6 +59,7 @@
 			stored_extinguisher = I
 			to_chat(user, "<span class='notice'>You place [I] in [src].</span>")
 			update_icon()
+			return TRUE
 		else
 			toggle_cabinet(user)
 	else if(user.a_intent != INTENT_HARM)