QmlDesigner.formEditor: layoutfix for full screen mode

Change-Id: I92b2d8c69d50ef0b76b1eb94ea481a442915c2e4
Reviewed-by: Marco Bubke <marco.bubke@nokia.com>

src/plugins/qmldesigner/components/formeditor/toolbox.cpp

@@ -49,6 +49,7 @@ ToolBox::ToolBox(QWidget *parentWidget)
   m_leftToolBar(new QToolBar("LeftSidebar", this)),
   m_rightToolBar(new QToolBar("RightSidebar", this))
 {
+    setMaximumHeight(44);
     setSingleRow(false);
     QFrame *frame = new QFrame(this);
     m_crumblePath = new Utils::CrumblePath(frame);