Fix showing notifications in the roster

There is a config setting in Gajim that allows to issue notifications
even if a chatcontrol is open. The config setting was only used for
system/desktop notifications in that case. Now it also controls if
a notification is shown in the roster.

Fixes #9223

gajim/notify.py

@@ -45,6 +45,8 @@ def get_show_in_roster(event, account, jid, session=None):
     if event == 'gc_message_received':
         return True
     if event == 'message_received':
+        if app.config.get('autopopup_chat_opened'):
+            return True
         if session and session.control:
             return False
     return True