Njenjo

Results 2 issues of Njenjo

![Screenshot_20240113_144248_Shader Editor](https://github.com/markusfisch/ShaderEditor/assets/115847042/ed6a28eb-7a44-4a00-b3a7-fe74a3a38b6c) No matching overload function even though everything is properly set up.

The installation for python is unclear. Do I follow the model preparation section in the C++ readme file or the python readme file?