Enhance documentation and integrate Google Analytics

- Added an Analytics section to the README.md, detailing what is tracked, privacy measures, and opt-out instructions.
- Implemented Google Analytics in index.html, including a privacy notice for open source users and environment-specific tracking IDs.
- Updated worklenz-frontend README.md to include a License section.

worklenz-frontend/README.md

@@ -8,6 +8,7 @@ Worklenz is a project management application built with React, TypeScript, and A
 - [Project Structure](#project-structure)
 - [Contributing](#contributing)
 - [Learn More](#learn-more)
+- [License](#license)
 
 ## Getting Started
 
@@ -93,3 +94,7 @@ To learn more about the technologies used in this project:
 - [TypeScript Documentation](https://www.typescriptlang.org/docs/)
 - [Ant Design Documentation](https://ant.design/docs/react/introduce)
 - [Vite Documentation](https://vitejs.dev/guide/)
+
+## License
+
+Worklenz is open source and released under the [GNU Affero General Public License Version 3 (AGPLv3)](LICENSE).