Fix GitHub issue template validation errors

[Muneer320]

Description

Fixes #320

This PR resolves validation errors in all three GitHub issue templates that were preventing them from working correctly.

Changes Made

• Fixed 01_bug_report.yml: Replaced invalid about key with description
• Fixed 02_feature_request.yml: Replaced invalid about key with description
• Fixed 03_documentation.yml: Replaced invalid about key with description

Testing

All three templates now pass GitHub's validation requirements:

• ✅ Uses permitted keys only
• ✅ Contains required non-markdown fields
• ✅ Templates display correctly in the issue creation UI

Impact

• Bug reports, feature requests, and documentation improvement requests can now be submitted using the proper forms
• All form fields are now properly validated and functional