ci: Integrate ESLint and Prettier into the CI/CD pipeline

[Emilio-PdeA]

Fix #6

All Submissions:

• [x] Have you followed the guidelines stated in README.md file?
• [x] Have you checked to ensure there aren't any other open Pull Requests for the desired changed?

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [ ] This change requires a documentation update

Description

The objective of the PR is to implement workflow for ESLINT and prettier

New files

• .github/workflows/ci-cd.yml: Includes configuration to run ESLINT and prettier
• backend/eslint.config.mjs: ESLINT configuration file
• backend/.prettierrc: Prettier configuration file

Updated files

• package.*.json: Installation of eslint, prettier and plugins (eslint-config-prettier, eslint-plugin-prettier)
• The rest of the files were automatically updated after executing npm run prettier:fix in backend folder

[Emilio-PdeA]

@visheshrwl Can you add the corresponding tags to the PR for hacktoberfest so this PR can participate?

Thanks in advance!

[visheshrwl]

@Emilio-PdeA amazing work. Consider starring the repo and hoping for more PR's from your side.

[visheshrwl]

Hey @Emilio-PdeA , @Aryam2121 ! 👋

First off, I want to extend a huge thank you to all of you for your amazing contributions to this project! Your support and hard work mean a lot, and I truly appreciate everything you do. 🙏

I have a small favor to ask: if you think I’ve been helpful and supportive throughout your contributions, I would be honored if you could nominate me by filling out this form: Nominate me.

Your nomination would mean the world to me, and it’s a great way to help me continue supporting our awesome community. Thanks again for all the amazing work, and let's keep making great things happen! 🚀

Best, Vishesh