Update Dockerfile

Dockerfile

@@ -16,19 +16,22 @@
 # RUN chmod 777 .chroma
 # # Use the official Ubuntu image.
 # Use the official Ubuntu image.
+# Use the official Ubuntu image.
 FROM ubuntu:20.04
 
 # Set the timezone
 ENV TZ=Etc/UTC
 RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone
 
-# Install dependencies
-RUN apt-get update && apt-get install -y \
+# Install dependencies in non-interactive mode
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get install -y \
     xfce4 \
     xfce4-goodies \
     tightvncserver \
     net-tools \
     curl \
+    tzdata \
+    keyboard-configuration \
     && rm -rf /var/lib/apt/lists/*
 
 # Set up VNC