Show previous request ON requested for selection

[Maheshkh9738]

PR Description:

This feature enhances the Service Catalog experience by displaying previous requests for the selected Requested For user. When a user selects the Requested For variable in a catalog item form, a confirmation message appears showing the last few requests created for that user.

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[ravichandra1998g]

Hello @Maheshkh9738

The script must be contained in a javascript (.js) file

Please place your script in javascript file.

Closing this PR for now. Please resubmit after making the changes