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.

doc/lwc-doc/docs/assets/pdf_button.js

@@ -1,11 +1,12 @@
 document.addEventListener("DOMContentLoaded", function () {
+  const siteRoot = document.querySelector('meta[name="site-root"]')?.content ?? "";
   const btn = document.createElement("a");
-  btn.href = "/pdf/document.pdf";
+  btn.href = siteRoot + "/pdf/documentation.pdf";
   btn.download = "lwc-documentation.pdf";
   btn.title = "Скачать всю документацию в PDF";
   btn.style.cssText = [
     "position: fixed",
-    "bottom: 24px",
+    "bottom: 80px",
     "right: 24px",
     "z-index: 9999",
     "background: var(--md-primary-fg-color, #1976d2)",