feat: use novnc, fix Thank you for buying timeout

docker/vnc-start.sh

@@ -2,7 +2,10 @@
 
 # Start VNC in a background process:
 x11vnc -display "$DISPLAY" -forever -shared -rfbport "${VNC_PORT:-5900}" \
-    -passwd "${VNC_PASSWORD:-secret}" &
+    -passwd "${VNC_PASSWORD:-secret}" -bg
+NOVNC_HOME=/usr/share/novnc
+ln -s $NOVNC_HOME/vnc_auto.html $NOVNC_HOME/index.html
+websockify -D --web "$NOVNC_HOME" "$NOVNC_PORT" "localhost:$VNC_PORT" &
 
 # Execute the given command:
 exec "$@"