Update Dockerfile, docker-compose, and package.json; add versioning script and styles for version display

Fix #21

Dockerfile

@@ -1,23 +1,24 @@
 # Use the official Node.js image as the base image
 FROM node:14
 
-# Set the working directory
+# Create app directory
 WORKDIR /usr/src/app
 
-# Copy package.json and package-lock.json
+# Install app dependencies
 COPY package*.json ./
-
-# Install dependencies
 RUN npm install
 
-# Copy the rest of the application code
+# Copy app source code
 COPY . .
 
+# Run the build script to update the version number
+RUN node build.js
+
 # Expose the port the app runs on
 EXPOSE 3044
 
 # Set the DEBUG environment variable
 ENV DEBUG=app
 
-# Command to run the application
+# Command to run the app
 CMD ["node", "server.js"]