Update Dockerfile

Dockerfile

@@ -3,8 +3,8 @@ RUN apt update
 RUN useradd -m -u 1000 user
 RUN chown root:shadow /etc/shadow
 RUN apt install -y xfce4-terminal lxde aqemu sudo curl wget aria2 qemu-system-x86 htop chromium screen tigervnc-standalone-server python3-pip python3-websockify python3 git fuse libfuse2 xdotool
-RUN apt remove -y light-locker xscreensaver-data xscreensaver
-RUN apt -y autoclean && apt -y autoremove 
+RUN apt remove -y lxclock
+RUN apt remove -y light-locker xscreensaver-data xscreensaver gnome-xscreensaver
 RUN sed -i '/@xscreensaver -no-splash/d' /etc/xdg/lxsession/LXDE/autostart
 RUN git clone https://github.com/novnc/noVNC.git noVNC
 RUN mkdir -p /home/user/.vnc