Refactors and optimizes core calendar managers

Streamlines several core managers by removing unnecessary complexity, caching, and redundant methods

Key improvements:
- Simplified event and view management logic
- Removed unnecessary caching mechanisms
- Reduced method complexity in managers
- Improved code readability and performance

src/renderers/NavigationRenderer.ts

@@ -6,46 +6,17 @@ import { EventRenderingService } from './EventRendererManager';
  * NavigationRenderer - Handles DOM rendering for navigation containers
  * Separated from NavigationManager to follow Single Responsibility Principle
  */
+
 export class NavigationRenderer {
   private eventBus: IEventBus;
-  
-  // Cached DOM elements to avoid redundant queries
-  private cachedWeekNumberElement: HTMLElement | null = null;
-  private cachedDateRangeElement: HTMLElement | null = null;
 
   constructor(eventBus: IEventBus, eventRenderer: EventRenderingService) {
     this.eventBus = eventBus;
     this.setupEventListeners();
   }
+ 
 
-  /**
-   * Get cached week number element
-   */
-  private getWeekNumberElement(): HTMLElement | null {
-    if (!this.cachedWeekNumberElement) {
-      this.cachedWeekNumberElement = document.querySelector('swp-week-number');
-    }
-    return this.cachedWeekNumberElement;
-  }
-
-  /**
-   * Get cached date range element
-   */
-  private getDateRangeElement(): HTMLElement | null {
-    if (!this.cachedDateRangeElement) {
-      this.cachedDateRangeElement = document.querySelector('swp-date-range');
-    }
-    return this.cachedDateRangeElement;
-  }
-
-  /**
-   * Clear cached DOM elements (call when DOM structure changes)
-   */
-  private clearCache(): void {
-    this.cachedWeekNumberElement = null;
-    this.cachedDateRangeElement = null;
-  }
-
+ 
   /**
    * Setup event listeners for DOM updates
    */
@@ -57,12 +28,11 @@ export class NavigationRenderer {
     });
   }
 
-  /**
-   * Update week info in DOM elements using cached references
-   */
+  
   private updateWeekInfoInDOM(weekNumber: number, dateRange: string): void {
-    const weekNumberElement = this.getWeekNumberElement();
-    const dateRangeElement = this.getDateRangeElement();
+
+    const weekNumberElement = document.querySelector('swp-week-number');
+    const dateRangeElement = document.querySelector('swp-date-range');
     
     if (weekNumberElement) {
       weekNumberElement.textContent = `Week ${weekNumber}`;