Grapher does not render images

The grapher in pandasgui does not work: the image does not render. Neither empty axes, nor any graphs with data.

**Environment**
OS: Ubuntu 22.04
Python: 3.9.13 (but tested on 3.8.* and 3.10.* too)
IDE: Pycharm (but tested in plain teriminal, either python, or ipython)

**Package versions**
```
ipython==8.5.0
pandasgui==0.2.13
plotly==5.10.0
PyQt5==5.15.7
PyQt5-Qt5==5.15.2
PyQt5-sip==12.11.0
PyQtWebEngine==5.15.6
PyQtWebEngine-Qt5==5.15.2
```