fixing bullshit

Dockerfile

@@ -15,10 +15,10 @@ USER user
 ENV HOME=/home/user
 WORKDIR $HOME
 
-RUN mkdir -p $HOME/.vnc
-RUN echo "password" | vncpasswd -f > $HOME/.vnc/passwd
-chmod 600 $HOME/.vnc/passwd
-
+RUN mkdir -p $HOME/.vnc && \
+    echo "password" | vncpasswd -f > $HOME/.vnc/passwd && \
+    chmod 600 $HOME/.vnc/passwd
+    
 RUN echo "#!/bin/bash\n\
 vncserver :1 -geometry 1280x800 -depth 24\n\
 /usr/share/novnc/utils/launch.sh --vnc localhost:5901 --listen 7860" > $HOME/start.sh