feat(project): enhance fork handling for existing repos

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Description

This merge request adds functionality to handle cases where a user attempts to fork a project that already exists in their namespace. Instead of failing, the code now offers options to clone the existing repository or add it as a remote. It also improves error handling and user feedback during the forking process. The changes mainly affect the project forking logic, providing a more user-friendly experience when dealing with potential naming conflicts or existing repositories. Additionally, the code introduces a new function to list projects, which is used to search for existing projects when adding them as remotes.

Resolve #897 (closed)

How has this been tested?

Screenshots (if appropriate):

Original	Updated

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation
• Chore (Related to CI or Packaging to platforms)
• Test gap