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/renderers/EventRendererManager.ts

@@ -46,7 +46,7 @@ export class EventRenderingService {
         }
         
         // Use cached strategy to render events in the specific container
-        this.strategy.renderEvents(events, context.container, calendarConfig);
+        this.strategy.renderEvents(events, context.container);
         
         // Emit EVENTS_RENDERED event for filtering system
         this.eventBus.emit(CoreEvents.EVENTS_RENDERED, {