Have a default template for merge requests and issues for the Admin Audit Trail project in Gitlab

Problem/Motivation

Add description templates to help your contributors to communicate effectively!

Proposed resolution

• Create an issue template
• Create a merge request template
• Use the templates
• Set a default template for merge requests and issues (PREMIUM)

Remaining tasks

• ✅ File an issue
• ✅ Addition/Change/Update/Fix
• ✅ Testing to ensure no regression
• ➖ Automated unit testing coverage
• ➖ Automated functional testing coverage
• ➖ UX/UI designer responsibilities
• ✅ Readability
• ✅ Accessibility
• ➖ Performance
• ➖ Security
• ✅ Documentation
• ✅ Code review by maintainers
• ✅ Full testing and approval
• ✅ Credit contributors
• ✅ Review with the product owner
• ✅ Release notes snippet
• ✅ Release admin_audit_trail-1.0.0

API changes

• N/A

Data model changes

• N/A

Release notes snippet

• Issue #3270458: Have a default template for merge requests and issues for the Admin Audit Trail project in Gitlab