Change jupyter_server to jupyterlite-core jupyterlab

Author: mcbarton

.github/workflows/deploy-github-page.yml

@@ -73,7 +73,7 @@ jobs:
         run: |
           micromamba create -n xeus-lite-host jupyterlite-core
           micromamba activate xeus-lite-host
-          python -m pip install jupyterlite-xeus jupyter_server notebook
+          python -m pip install jupyterlite-xeus jupyterlite-core jupyterlab notebook
           jupyter lite build --XeusAddon.prefix=${{ env.PREFIX }} --contents notebooks/xeus-cpp-lite-demo.ipynb --output-dir dist
           cp $PREFIX/bin/xcpp.data dist/extensions/@jupyterlite/xeus/static
           cp $PREFIX/lib/libclangCppInterOp.so dist/extensions/@jupyterlite/xeus/static