fix: correctly set anchor to center for sprites

libs/shared/lib/vis/visualizations/nodelinkvis/components/NLPixi.tsx

@@ -292,6 +292,7 @@ export const NLPixi = (props: Props) => {
     const gfx = new Sprite(texture);
     gfx.tint = nodeColor(node.type);
     gfx.scale.set(0.75, 0.75);
+    gfx.anchor.set(0.5, 0.5);
 
     nodeMap.set(node._id, gfx);
     nodeLayer.addChild(gfx);