Install jupyterlab in devcontainer

.devcontainer/Dockerfile

@@ -4,7 +4,7 @@ FROM mcr.microsoft.com/devcontainers/python:${PY_VER}-${DISTRO}
 RUN \
     apt update && \
     apt-get install bash-completion graphviz default-mysql-client -y && \
-    pip install flake8 black faker ipykernel pytest pytest-cov nose nose-cov datajoint && \
+    pip install flake8 black faker ipykernel pytest pytest-cov nose nose-cov datajoint jupyterlab && \
     pip uninstall datajoint -y
 
 USER root