Feature: Allow setting line width for vector vis.

OpenMesh/OMPropertyVisualizerVector2T.cc

@@ -71,6 +71,8 @@ OMPropertyVisualizerVector2<MeshT, VectorType>::OMPropertyVisualizerVector2(Mesh
     {
         w->vectors_edges_rb->hide();
     }
+    this->connect(w->lineWidth, QOverload<double>::of(&QDoubleSpinBox::valueChanged),
+                  [this](double value) {lineNode->set_line_width(value);});
 }
 
 template <typename MeshT, typename VectorType>