Show warning after 3 seconds - I don't want to wait 4 before I see if

my message has been received. This is a compromise between my 2 secs
and Jim's 4 sec :).

src/conversation_textview.py

@@ -440,7 +440,7 @@ class ConversationTextview:
 
 			self.xep0184_shown[id_] = SHOWN
 			return False
-		gobject.timeout_add_seconds(4, show_it)
+		gobject.timeout_add_seconds(3, show_it)
 
 		buffer.end_user_action()