refactor: unify python packages across jupyter, devel and home configs

- Create modules/python-packages.nix as single source of truth for 51 packages
- Update develPackages.nix to use shared package list with jupyter included
- Update jupyterhub.nix kernel to use shared package list
- Update home/python.nix to use shared package list
- Disable kicad/easyeda2kicad (transient GitLab download corruption)

modules/python-packages.nix

@@ -0,0 +1,51 @@
+ps: with ps; [
+  ipykernel
+  jupyter
+  jupyterlab
+  notebook
+  numpy
+  scipy
+  pandas
+  matplotlib
+  seaborn
+  scikit-learn
+  scikit-image
+  sympy
+  nltk
+  huggingface-hub
+  datasets
+  tokenizers
+  transformers
+  accelerate
+  peft
+  bitsandbytes
+  torch
+  torchvision
+  lightning
+  keras
+  opencv-python
+  pillow
+  pyvista
+  vispy
+  pygame
+  tqdm
+  flask
+  flask-sqlalchemy
+  flask-socketio
+  werkzeug
+  gunicorn
+  requests
+  pyyaml
+  authlib
+  litellm
+  openai
+  langchain
+  langchain-community
+  pydantic
+  pydantic-core
+  docling-core
+  pycryptodome
+  flake8
+  pip
+  tkinter
+]