Update Dockerfile

Dockerfile

@@ -13,6 +13,7 @@ RUN pip install git+https://github.com/bowman-lab/enspara
 RUN pip install biopython
 RUN pip install pdb-tools
 RUN pip install gradio gradio_molecule3d
+USER user
 RUN wget https://sourceforge.net/projects/smina/files/smina.static/download -O smina.static
 RUN chmod u+x smina.static
 # don't change below