Refactors calendar configuration and event handling

Streamlines calendar configuration by adopting a singleton pattern for consistent access and simplifies event handling.

- Removes direct `CalendarConfig` dependency injection in favor of the `calendarConfig` singleton, reducing code complexity.
- Replaces specific event emissions for grid, date, and resource settings updates with a general `REFRESH_REQUESTED` event.
- Updates event names to be more descriptive and consistent ("NAVIGATION_COMPLETED", "PERIOD_INFO_UPDATE").
- Removes the need to pass the calendar config to renderers since it is now a singleton.

This improves code maintainability and simplifies the event emission process.

src/managers/ScrollManager.ts

@@ -31,7 +31,7 @@ export class ScrollManager {
 
   private subscribeToEvents(): void {
     // Handle navigation animation completion - sync time axis position
-    eventBus.on(CoreEvents.PERIOD_CHANGED, () => {
+    eventBus.on(CoreEvents.NAVIGATION_COMPLETED, () => {
       this.syncTimeAxisPosition();
       this.setupScrolling();
     });