Add Katia to points of contact list aka. Team page

[pz-max]

• Code relevant position https://github.com/pypsa-meets-earth/pypsa-meets-earth.github.io/blob/6e129d9dc3bb7d827c82cde270d91259b9f748de/team.html#L205-L217. I would suggest to place you before Stuart (the code lines above).
• You need to provide an image here: https://github.com/pypsa-meets-earth/pypsa-meets-earth.github.io/tree/main/assets/img/people. In the folder is also a crop-image-center.py, please use that tool to perfectly crop your image. Important for web application is that the file size is not too big, so make sure that the image is of reasonable size (see the other image file sizes).
• You can also provide your twitter, LinkedIn and email detail

• @ekatef