Add comprehensive library expansion with new components and demos

- Add new libraries: ui-accessibility, ui-animations, ui-backgrounds, ui-code-display, ui-data-utils, ui-font-manager, hcl-studio
- Add extensive layout components: gallery-grid, infinite-scroll-container, kanban-board, masonry, split-view, sticky-layout
- Add comprehensive demo components for all new features
- Update project configuration and dependencies
- Expand component exports and routing structure
- Add UI landing pages planning document

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

projects/ui-code-display/node_modules/prismjs/plugins/download-button/prism-download-button.min.js

@@ -0,0 +1 @@
+"undefined"!=typeof Prism&&"undefined"!=typeof document&&document.querySelector&&Prism.plugins.toolbar.registerButton("download-file",(function(t){var e=t.element.parentNode;if(e&&/pre/i.test(e.nodeName)&&e.hasAttribute("data-src")&&e.hasAttribute("data-download-link")){var n=e.getAttribute("data-src"),a=document.createElement("a");return a.textContent=e.getAttribute("data-download-link-label")||"Download",a.setAttribute("download",""),a.href=n,a}}));