Add documentation for SunriseWorkbench project setup and features

- Create libraries.md for library installation instructions in SunriseWorkbench.
- Create load-project.md for importing existing projects in SunriseWorkbench.
- Create new-project.md detailing the process of creating a new project in SunriseWorkbench.
- Add applications.md to describe the applications section in KUKA smartHMI.
- Add extra-menu.md for additional robot control options in KUKA smartHMI.
- Create io-group.md for managing input/output groups in KUKA smartHMI.
- Add robot-menu.md as a placeholder for the robot menu section in KUKA smartHMI.
- Create station.md to outline the main navigation and functionalities in KUKA smartHMI.
- Add LBRserver.md, robot-power-control.md, and teach-kuka.md as placeholders for respective control programs.
- Create config-error.md to provide troubleshooting steps for configuration errors in SunriseWorkbench.
- Add main.html to override base template with site root metadata.

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