Add some clean up commands to reduce image site

Author: xcompass

Dockerfile

@@ -101,6 +101,11 @@ RUN pip install jupytext --upgrade
 
 # run jupyter lab build for jupyterlab-dash integration. prompted after logging in
 RUN jupyter lab build && \
+    jupyter lab clean && \
+    jlpm cache clean && \
+    npm cache clean --force && \
+    rm -rf $HOME/.node-gyp && \
+    rm -rf $HOME/.local && \
     fix-permissions $CONDA_DIR && \
     fix-permissions /home/jovyan
 RUN export NODE_OPTIONS=--max-old-space-size=4096