ui: Show namespace label on left side of graph nodes

* Added arrow indicating namespace and package name on left side of node
* Show namespace label when hovering arrow
* Activate namespace when clicking label
* New design for namespace nodes

src/lib_gui/qt/view/graphElements/QtGraphNode.cpp

@@ -183,8 +183,6 @@ bool QtGraphNode::getIsActive() const
 void QtGraphNode::setIsActive(bool isActive)
 {
 	m_isActive = isActive;
-
-	updateStyle();
 }
 
 void QtGraphNode::setMultipleActive(bool multipleActive)
@@ -250,6 +248,11 @@ bool QtGraphNode::isBundleNode() const
 	return false;
 }
 
+bool QtGraphNode::isQualifierNode() const
+{
+	return false;
+}
+
 Id QtGraphNode::getTokenId() const
 {
 	return 0;