Improves all-day event rendering and handling

Refactors all-day event container handling to improve rendering and event delegation.

Ensures all-day containers are consistently created and managed,
preventing issues with event display and drag-and-drop functionality.

Moves event listener setup into dedicated methods for better
organization and reusability.

src/renderers/EventRendererManager.ts

@@ -51,7 +51,6 @@ export class EventRenderingService {
         
         // Use cached strategy to render events in the specific container
         this.strategy.renderEvents(events, context.container, calendarConfig);
-        
         console.log(`   ✅ Rendered ${events.length} events successfully`);
         
         // Emit EVENTS_RENDERED event for filtering system