Adds work week configuration feature

Implements configurable work week presets, allowing users to customize the days displayed in the calendar.

This includes:
- Defining work week settings (work days, day names, total days).
- Providing predefined work week presets (standard, compressed, weekend, full week).
- Adding UI elements to switch between presets.
- Updating grid and header rendering logic to reflect the selected work week.
- Emitting events when the work week changes, triggering necessary UI updates and data re-renders.

This provides a more flexible and personalized calendar experience.

src/managers/ViewManager.ts

@@ -33,6 +33,9 @@ export class ViewManager {
 
         // Setup view button handlers
         this.setupViewButtonHandlers();
+        
+        // Setup workweek preset button handlers
+        this.setupWorkweekButtonHandlers();
     }
 
     private setupViewButtonHandlers(): void {
@@ -48,8 +51,22 @@ export class ViewManager {
         });
     }
 
+    private setupWorkweekButtonHandlers(): void {
+        const workweekButtons = document.querySelectorAll('swp-preset-button[data-workweek]');
+        workweekButtons.forEach(button => {
+            button.addEventListener('click', (event) => {
+                event.preventDefault();
+                const workweekId = button.getAttribute('data-workweek');
+                if (workweekId) {
+                    this.changeWorkweek(workweekId);
+                }
+            });
+        });
+    }
+
     private initializeView(): void {
         this.updateViewButtons();
+        this.updateWorkweekButtons();
         
         this.eventBus.emit(EventTypes.VIEW_RENDERED, {
             view: this.currentView
@@ -72,6 +89,18 @@ export class ViewManager {
         });
     }
 
+    private changeWorkweek(workweekId: string): void {
+        console.log(`ViewManager: Changing workweek to ${workweekId}`);
+        
+        // Update the calendar config
+        calendarConfig.setWorkWeek(workweekId);
+        
+        // Update button states
+        this.updateWorkweekButtons();
+        
+        // Trigger a calendar refresh to apply the new workweek
+        this.eventBus.emit(EventTypes.REFRESH_REQUESTED);
+    }
 
     private updateViewButtons(): void {
         const viewButtons = document.querySelectorAll('swp-view-button[data-view]');
@@ -85,6 +114,20 @@ export class ViewManager {
         });
     }
 
+    private updateWorkweekButtons(): void {
+        const currentWorkweek = calendarConfig.getCurrentWorkWeek();
+        const workweekButtons = document.querySelectorAll('swp-preset-button[data-workweek]');
+        
+        workweekButtons.forEach(button => {
+            const buttonWorkweek = button.getAttribute('data-workweek');
+            if (buttonWorkweek === currentWorkweek) {
+                button.setAttribute('data-active', 'true');
+            } else {
+                button.removeAttribute('data-active');
+            }
+        });
+    }
+
     private refreshCurrentView(): void {
         this.eventBus.emit(EventTypes.VIEW_RENDERED, {
             view: this.currentView