Update Dockerfile

Dockerfile

@@ -6,10 +6,10 @@ USER root:root
 
 RUN mkdir -p /code && chown ${DEVBOX_USER}:${DEVBOX_USER} /code
 
-USER ${DEVBOX_USER}:${DEVBOX_USER}
-
 COPY --chown=${DEVBOX_USER}:${DEVBOX_USER} . /code
 
 RUN devbox run -- echo "Installed Packages."; nix-store --gc; nix-store --optimise;
 
+USER ${DEVBOX_USER}:${DEVBOX_USER}
+
 CMD ["devbox", "run", "vocalizr"]