message: Added `react-flow__connectionline` class
diff: @@ -93,7 +93,7 @@ const EdgeRenderer = (props: EdgeRendererProps) => {
  style={{ zIndex: level }}
  width={width}
  height={height}
  - className="react-flow__edges react-flow__container"
  + className="react-flow__edges react-flow__connectionline react-flow__container"
  >
  {isMaxLevel && <MarkerDefinitions defaultColor={defaultMarkerColor} />}
  <g>
  