Add Dockerfile and docker-compose.yml for containerization #176

Description:
I would like to propose adding a Dockerfile and docker-compose.yml to the repository to simplify the setup, improve consistency, and provide an easier way for both developers and users to get the project up and running in any environment.

Benefits:

• Consistency across Environments: Docker containers ensure that the application runs the same way in every environment, eliminating "works on my machine" issues.
• Easy Setup: A single docker-compose up command can bring up all required services and dependencies, streamlining the setup process for new developers and contributors.
• Simplified Deployment: With Docker, the project can be easily deployed to cloud platforms or container orchestration tools like Kubernetes.

Proposed Files:

1. Dockerfile: Builds the Docker image with all dependencies needed to run the application.
2. docker-compose.yml: Manages the application's services (e.g., app and database) and orchestrates their interaction.