Try more memory for dash build

Dockerfile

@@ -17,6 +17,12 @@ RUN pip install jupyterlab-gitlab==3.0.0
 # Install jupyterlab-dash
 RUN jupyter labextension install jupyterlab-dash
 
+# Set environment variable for node memory limit
+ENV NODE_OPTIONS="--max-old-space-size=4096"
+
+# Build JupyterLab
+RUN jupyter lab build
+
 # Copy and install additional Python packages
 COPY requirements.txt requirements.txt
 RUN pip install --no-cache-dir -r requirements.txt