ci(frontend): Build docker image and scan image with trivy

[aadil96]

No description provided.

[what-the-diff]

PR Summary

• New Build Step for the Backend Application
  A new procedure has been added to construct the Docker image for the backend application. This means that the backend can now be packaged into a Docker image, which simplifies the process of deploying and running the backend on any system that supports Docker.

• Integration of Trivy Vulnerability Scanner
  In order to increase the security level of our application, a step has been added to deploy the Trivy vulnerability scanner. This tool scans our frontend-app:latest Docker image for potential vulnerabilities, helping us identify and address potential security concerns before they become problematic.