Refactor Dockerfile to improve copy command

This commit updates the Dockerfile to be more specific in copying files to the container. Instead of copying all files from the current directory, it selectively copies only the src directory and a couple of necessary files. This change improves the organization and build efficiency of the Docker container.

Dockerfile

@@ -5,7 +5,8 @@ FROM python:3.9-alpine
 WORKDIR /app
 
 # Copy the source code into the container
-COPY . .
+COPY src ./src/
+COPY setup.py README.md ./
 
 # Install the application and its dependencies
 RUN pip install -e .