wwan: Fix enabling data after APN is set
Since we don't use gtk_dialog_run(), the dialog was shown in a non-blocking way. So instead of handling the APN details immidiately after the APN dialog is shown, handle them in a signal callback.
Fixes #1465 (closed)
/cc @pabloyoyoista
I'm not sure the way I have done (using g_object_[sg]et_data()
) would be a good way to handle this