base-notebook: stop installing nodejs from conda-forge (#2172)

* base-notebook: stop installing nodejs from conda-forge

nodejs was a conda dependency of jupyterhub, but by installing
jupyterhub-base we no longer need it and could opt to remove it.

By doing this, building base-notebook led to a reported size reduction
from 974MB to 828MB, which is a 146MB / 15% size reduction.

* Update CHANGELOG.md

* Update CHANGELOG.md

* Install jupyterhub-singleuser instead of jupyterhub-base

Note that jupyterhub-base is really whats the foundational need for this
image, where jupyterhub-singleuser the conda-forge package is building on
jupyterhub-base by also adding a depdendency on jupyterlab - but the
jupyterhub-singleuser command is provided by jupyterhub-base conda-forge
package.

* Update CHANGELOG.md

Co-authored-by: Ayaz Salikhov <mathbunnyru@users.noreply.github.com>

---------

Co-authored-by: Ayaz Salikhov <mathbunnyru@users.noreply.github.com>

docs/using/recipe_code/jupyterhub_version.dockerfile

@@ -1,6 +1,6 @@
 FROM quay.io/jupyter/base-notebook
 
-RUN mamba install --yes 'jupyterhub-base==4.0.1' && \
+RUN mamba install --yes 'jupyterhub-singleuser==4.0.1' && \
     mamba clean --all -f -y && \
     fix-permissions "${CONDA_DIR}" && \
     fix-permissions "/home/${NB_USER}"

docs/using/selecting.md

@@ -54,9 +54,7 @@ It contains:
 
 - Everything in `jupyter/docker-stacks-foundation`
 - Minimally functional Server (e.g., no LaTeX support for saving notebooks as PDFs)
-- `notebook`, `jupyterhub-base`, and `jupyterlab` packages
-  Note: we're also installing `nodejs` as it has historically been installed indirectly as a dependency of `jupyterhub` package, which was used before.
-  See more at: <https://github.com/jupyter/docker-stacks/pull/2171>
+- `notebook`, `jupyterhub-singleuser`, and `jupyterlab` packages
 - A `start-notebook.py` script as the default command
 - A `start-singleuser.py` script useful for launching containers in JupyterHub
 - Options for a self-signed HTTPS certificate