Feature: show react-svg-pan-zoom toolbar

[hichemfantar]

How can I bring back the toolbar already available in react-svg-pan-zoom library?

Cause: svg-viewer.jsx ( customToolbar={() => <></>} )
Wouldn't it be better to make the custom Toolbar optional?

  return (
    <ReactSVGPanZoom
      detectAutoPan={false}
      ref={Viewer}
      scaleFactor={scaleFactor}
      scaleFactorMax={scaleFactorMax}
      scaleFactorMin={scaleFactorMin}
      width={Math.min(width, bracketWidth)}
      height={Math.min(height, bracketHeight)}
      tool={tool}
      onChangeTool={setTool}
      value={value}
      onChangeValue={setValue}
      onZoom={lockToBoundaries}
      onPan={lockToBoundaries}
      miniatureProps={{ position: 'right' }}
      customToolbar={() => <></>}
      {...rest}
    >
      {children}
    </ReactSVGPanZoom>
  );