[FEATURE] Add Auto Comment Feature to Improve Collaboration

[shraddha761]

Description

implementing an auto-comment feature would greatly enhance collaboration and communication within the project. This feature would automatically generate comments in response to specific events, such as when an issue is opened, a pull request is created, an issue is assigned, or an issue is unassigned.

Feature Details:

When an issue is opened, the auto-comment should greet the author and provide a brief acknowledgement and request for additional context.
When a pull request is opened, the auto-comment should greet the author, express gratitude, and remind them to follow the project's contributing guidelines.
When an issue is closed, the auto-comment should thank the author for their contribution and encourage further engagement.
When an issue is assigned to someone, the auto-comment should notify the assignee and encourage them to start working on it.
When an issue is unassigned from someone, the auto-comment should notify the assignee about the change and suggest reassignment if they are offline.

Screenshots

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