v4.0.0

• Features ✨ :
  • Moving to mamba-org; rebranding from jupyter_conda to mamba_gator (and from jupyterlab_conda to @mamba-org/gator-lab)
  • Integrate a standalone application
  • Common frontend for JupyterLab, classical Notebook and Gator
  • Depend optionally on nb_conda_kernels