Fix: Update to repository addition order

[Rana-KV]

Description

fixes: #430

Updated the order of adding repository based on target_path if provided, else based on target_name if target_path is empty. Completely making target_name mandatory might break the functionality of updater based repository additions, so did not completely remove the target_path based repository addition.

Updated the --target-name option as required in the CLI. However, I have maintained the default assignment as None because the API function relies on None to determine if the target-name was provided or not.

Code review checklist (for code reviewer to complete)

• [ ] Pull request represents a single change (i.e. not fixing disparate/unrelated things in a single PR)
• [ ] Title summarizes what is changing
• [ ] Commit messages are meaningful (see this for details)
• [ ] Tests have been included and/or updated, as appropriate
• [ ] Docstrings have been included and/or updated, as appropriate
• [ ] Changelog has been updated, as needed (see CHANGELOG.md)

[Rana-KV]

I have added the --target-name option as required in the CLI. However, I have maintained the default assignment as None because the API function relies on Noneto determine if the target-name was provided or not.

Thanks for catching the problem.