ui: only single class expand button next to class name

This change reduces the size of collapsed classes in the GraphView by removing the condensed view of the class access
nodes and using a single button next to the class name for collapsing and expanding instead.

src/app/qt/utility/QtGraphPostprocessor.cpp

@@ -423,14 +423,14 @@ void QtGraphPostprocessor::resizeNodes(std::list<std::shared_ptr<QtGraphNode>>&
 		Vec2i size = (*it)->getSize();
 
 		int newWidth = s_cellSize;
-		while(size.x - newWidth > 0)
+		while(size.x - newWidth > 3)
 		{
 			newWidth += s_cellPadding + s_cellSize;
 		}
 		size.x = newWidth;
 
 		int newHeight = s_cellSize;
-		while(size.y - newHeight > 0)
+		while(size.y - newHeight > 3)
 		{
 			newHeight += s_cellPadding + s_cellSize;
 		}