Also allow moving time selection by dragging it from the top

Source/PluginEditor.cpp

@@ -607,13 +607,13 @@ void WaveformComponent::mouseDrag(const MouseEvent & e)
 {
 	if (m_didseek == true)
 		return;
-	if (m_time_sel_drag_target == 0 && e.mods.isAnyModifierKeyDown()==false)
+	if (m_time_sel_drag_target == 0 && (e.mods.isAnyModifierKeyDown()==false && e.y>=50))
 	{
 		m_time_sel_start = m_drag_time_start;
 		m_time_sel_end = viewXToNormalized(e.x);
 	}
 	double curlen = m_time_sel_end - m_time_sel_start;
-	if (m_time_sel_drag_target == 0 && e.mods.isShiftDown())
+	if (m_time_sel_drag_target == 0 && (e.mods.isShiftDown() || e.y<50))
 	{
 		double diff = m_drag_time_start - viewXToNormalized(e.x);
 		m_time_sel_start = jlimit<double>(0.0, 1.0-curlen, m_time_sel_start - diff);