chore: update repo structure

[brionmario]

Purpose

This pull request includes several updates to configuration files, documentation, and workflows. The changes aim to improve the development environment, streamline workflows, and enhance documentation.

Configuration Updates:

• Added .editorconfig to standardize editor settings across the project.
• Added .eslintignore and .prettierignore to define global ignore rules for ESLint and Prettier.

Workflow Enhancements:

• Created a new GitHub Actions workflow (pr-builder.yml) to build and test pull requests submitted to the main branch.
• Created a release workflow (release.yml) to automate the release process.

Documentation Improvements:

• Added a comprehensive CONTRIBUTING.md guide to help new contributors set up the development environment and follow commit message guidelines.
• Updated .github/issue_template.md and .github/pull_request_template.md to improve the issue and pull request submission process. [1] [2]

Changeset Configuration:

• Introduced Changesets by adding a .changeset folder with a README.md and config.json for versioning and publishing code. [1] [2]

Miscellaneous:

• Added .npmrc and .nvmrc files to manage npm and Node.js versions. [1] [2]
• Configured VS Code settings to format code on save.

Related Issues

• Initialize the repository as a mono-repo, enforce best practices & prepare for the first release 🎉 #3

Related PRs

• N/A

Checklist

• e2e cypress tests locally verified.
• Manual test round performed and verified.
• UX/UI review done on the final implementation.
• Documentation provided. (Add links if there are any)
• Unit tests provided. (Add links if there are any)
• Integration tests provided. (Add links if there are any)

Security checks

• Followed secure coding standards in http://wso2.com/technical-reports/wso2-secure-engineering-guidelines?
• Ran ESLint & Prettier plugins and verified?
• Confirmed that this PR doesn't commit any keys, passwords, tokens, usernames, or other secrets?

[brionmario]

Will fix the ESLint issues later.