Add KB Article Link Dynamic Email Script to Notification

[Suri123789]

PR Description:

This PR introduces a dynamic email script get_kbarticle_link used in KB article approval notifications.
The script generates a clickable hyperlink for the KB Article Number using the instance URL retrieved through glide.servlet.uri. This ensures recipients can directly access the article from the email, improving review efficiency and user experience.

Pull Request Checklist

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[github-actions]

👋 Unassigning @Atul-LNG due to inactivity (> 60 min without comments/reviews). This PR remains open for other reviewers.

[snamjosh]

Thanks for your submission. It appears that this pull request contains more files than described in the title. Please review and update the pull request to either remove the extra/unintended files or to update the description to be more comprehensive. Ensure your contributions are meaningful and adhere to the project’s standards. [If applicable: You can create a new branch on your forked repository to avoid accidental inclusions of new commits in the future.]. Closing this for now. Once you make additional changes, feel free to re-open this Pull Request or create a new one.