Documentation: Kedro-Viz React component usage

[jitu5]

Resolves https://github.com/kedro-org/kedro-viz/issues/1745

This PR introduces detailed documentation on how to use the Kedro-Viz React component. The following changes have been made:

• ~README.md Relocation: Existing README.md file has been moved to the .github folder.~
• NPM-Specific README.md: README.npm.md is created at root to be used specifically for NPM.
• New Repository: A new kedro-viz-standalone repository has been created under the kedro-org.
• Documentation Update: A new section, "As a standalone React component," has been added to the Kedro-Viz documentation.
• Props Explanation: Detailed props explanation has been kept in the README.md for NPM.
• UI Component Annotation: A Kedro-Viz UI component annotation screenshot has been added.
• Github Actions: In release.yml under release_to_npm job, new step added to rename README.npm.md to README.md before npm publish step.

Note: Before merge please update url of annotation image and change kedro-viz-standalone repository visibility to public.

Reference of README.md from my personal repository of Kedro-viz: Github: https://github.com/jitu5/kedro-viz
NPM: https://www.npmjs.com/package/kedro-vizzz PyPI: https://test.pypi.org/project/kedro-vizzz

Checklist

• [X] Read the contributing guidelines
• [ ] Opened this PR as a 'Draft Pull Request' if it is work-in-progress
• [ ] Updated the documentation to reflect the code changes
• [ ] Added new entries to the RELEASE.md file
• [ ] Added tests to cover my changes