refactor: improve code formatting and consistency across multiple files

- Standardized import statements and removed unnecessary line breaks for better readability in various components.
- Enhanced error handling and logging in the useElectronPrinter hook.
- Updated sample data formatting in AgGridShowcase for improved clarity.
- Refactored JSX elements for consistent indentation and structure in LandingSample, AuthPage, and EventsPage components.
- Consolidated and simplified conditional rendering logic in several components.

These changes aim to enhance code maintainability and readability throughout the project.

packages/core-events/src/hooks.ts

@@ -22,10 +22,7 @@ import { eventBus, publish as busPublish } from './event-bus';
  * });
  * ```
  */
-export function useAppEvent<K extends keyof AppEvents>(
-  type: K,
-  handler: (event: AppEvents[K]) => void,
-): void {
+export function useAppEvent<K extends keyof AppEvents>(type: K, handler: (event: AppEvents[K]) => void): void {
   // Always keep the latest handler in a ref to avoid stale closures
   // and prevent re-subscription on every render.
   const handlerRef = useRef(handler);