Properly implement the "Action after paste" feature

Scroll to end only when data is not from pasting

Fixes https://github.com/lxqt/qterminal/issues/43
Fixes https://github.com/lxqt/qterminal/issues/741

lib/qtermwidget.cpp

@@ -328,8 +328,8 @@ void QTermWidget::init(int startnow)
             this, SIGNAL(termGetFocus()));
     connect(m_impl->m_terminalDisplay, SIGNAL(termLostFocus()),
             this, SIGNAL(termLostFocus()));
-    connect(m_impl->m_terminalDisplay, SIGNAL(keyPressedSignal(QKeyEvent *)),
-            this, SIGNAL(termKeyPressed(QKeyEvent *)));
+    connect(m_impl->m_terminalDisplay, &TerminalDisplay::keyPressedSignal,
+            [this] (QKeyEvent* e, bool) { Q_EMIT termKeyPressed(e); });
 //    m_impl->m_terminalDisplay->setSize(80, 40);
 
     QFont font = QApplication::font();