Add PR Template

## Feature Description
*Create a Pull Request template for easier PR creation, consistency for reviewers, and ensuring that all PRs provide the necessary relevant information from creation.*

## Why It's Worth Implementing
*Saves time for both developers and reviewers. Also decreases the need for back-and-forth comments.*

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## Acceptance Criteria & Solution Requirements
*To close this issue, the following must be met:*
- [ ] 1. New template is created with fields or placeholders for common information across PRs.
- [ ] 2. Confirm template default content and fields with the team.
- [ ] 3. Provide easy extensibility for non-standard PR details.