feat(github): add links to children and related issues

[Phil91]

Pull Request

Description

• Add option to link children within the body of a parent issue. The issues will be linked as Tasks.
• Add option to link related issues within the comments of an issue.

Related Issue

#33

Checklist

Please review and complete the following checklist before submitting the pull request:

• I have read and followed the project's contributing guidelines.
• I have tested the changes locally and they are functioning as expected.
• I have added necessary documentation or updated the existing documentation.
• My code follows the project's code style and conventions.
• I have reviewed my changes to ensure they do not introduce any potential security vulnerabilities.