Fixed #70

Description:

This pull request implements a new GitHub Actions workflow named "Greetings," which automatically greets users who open new issues or pull requests in this repository.

Key Features:

• Automatic Greeting: Users will receive an immediate acknowledgment when they create an issue or pull request. The messages are:
• For Issues: "👋 Thank you for raising an issue! We appreciate your effort in helping us improve. Our team will review it shortly. Stay tuned!"
• For Pull Requests: "🎉 Thank you for your contribution! Your pull request has been submitted successfully. A maintainer will review it as soon as possible. We appreciate your support in making this project better."

Implementation Details:

• Created a workflow file named greetings.yml in the .github/workflows directory.
• Configured the workflow to trigger on both new issues and pull requests.
• Utilized the actions/first-interaction action to manage the greeting messages.
• This enhancement aims to foster a welcoming environment for contributors and improve community engagement.