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/rxjs/src/internal/scheduler/timeoutProvider.ts

@@ -0,0 +1,31 @@
+import type { TimerHandle } from './timerHandle';
+type SetTimeoutFunction = (handler: () => void, timeout?: number, ...args: any[]) => TimerHandle;
+type ClearTimeoutFunction = (handle: TimerHandle) => void;
+
+interface TimeoutProvider {
+  setTimeout: SetTimeoutFunction;
+  clearTimeout: ClearTimeoutFunction;
+  delegate:
+    | {
+        setTimeout: SetTimeoutFunction;
+        clearTimeout: ClearTimeoutFunction;
+      }
+    | undefined;
+}
+
+export const timeoutProvider: TimeoutProvider = {
+  // When accessing the delegate, use the variable rather than `this` so that
+  // the functions can be called without being bound to the provider.
+  setTimeout(handler: () => void, timeout?: number, ...args) {
+    const { delegate } = timeoutProvider;
+    if (delegate?.setTimeout) {
+      return delegate.setTimeout(handler, timeout, ...args);
+    }
+    return setTimeout(handler, timeout, ...args);
+  },
+  clearTimeout(handle) {
+    const { delegate } = timeoutProvider;
+    return (delegate?.clearTimeout || clearTimeout)(handle as any);
+  },
+  delegate: undefined,
+};