Add GlideRecord example to query active incidents snippet_file.js

[divyajetti9]

PR Description:

What

Added a new code snippet showing how to use the GlideRecord API to query active incidents.

Files Added

Core ServiceNow APIs/GlideRecord/Query Active Incidents/README.md
Core ServiceNow APIs/GlideRecord/Query Active Incidents/snippet_file.js

Why

Helps beginners understand how to use GlideRecord queries and retrieve record fields.

Notes

If acceptable, please add the hacktoberfest-accepted label.

Pull Request Checklist

Overview

• I have read and understood the CONTRIBUTING.md guidelines
• My pull request has a descriptive title that accurately reflects the changes
• I've included only files relevant to the changes described in the PR title and description
• I've created a new branch in my forked repository for this contribution

Code Quality

• My code is relevant to ServiceNow developers
• My code snippets expand meaningfully on official ServiceNow documentation (if applicable)
• I've disclosed use of ES2021 features (if applicable)
• I've tested my code snippets in a ServiceNow environment (where possible)

Repository Structure Compliance

• I've placed my code snippet(s) in one of the required top-level categories:
  • Core ServiceNow APIs/
  • Server-Side Components/
  • Client-Side Components/
  • Modern Development/
  • Integration/
  • Specialized Areas/
• I've used appropriate sub-categories within the top-level categories
• Each code snippet has its own folder with a descriptive name

Documentation

• I've included a README.md file for each code snippet
• The README.md includes:
  • Description of the code snippet functionality
  • Usage instructions or examples
  • Any prerequisites or dependencies
  • (Optional) Screenshots or diagrams if helpful

Restrictions

• My PR does not include XML exports of ServiceNow records
• My PR does not contain sensitive information (passwords, API keys, tokens)
• My PR does not include changes that fall outside the described scope

[rohi-v]

Thank you for your contribution. However, it doesn’t comply with our contributing guidelines. As a reminder, the general requirements (as outlined in the CONTRIBUTING.md file) are the following: follow the folder+subfolder+snippetfolder guidelines and include a readme.md file explaining what the code snippet does. Review your contribution against the guidelines and make the necessary adjustments. Closing this for now. Once you make additional changes, feel free to re-open this Pull Request or create a new one.