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>

package.json

@@ -22,6 +22,7 @@
     "@fortawesome/free-brands-svg-icons": "^7.0.0",
     "@fortawesome/free-regular-svg-icons": "^7.0.0",
     "@fortawesome/free-solid-svg-icons": "^7.0.0",
+    "prismjs": "^1.30.0",
     "rxjs": "~7.8.0",
     "tslib": "^2.3.0",
     "zone.js": "~0.15.0"
@@ -31,6 +32,7 @@
     "@angular/cli": "^19.2.15",
     "@angular/compiler-cli": "^19.2.0",
     "@types/jasmine": "~5.1.0",
+    "@types/prismjs": "^1.26.5",
     "jasmine-core": "~5.6.0",
     "karma": "~6.4.0",
     "karma-chrome-launcher": "~3.2.0",