Add comprehensive tests for vac-optimizer application

Co-authored-by: THoguet <61246905+THoguet@users.noreply.github.com>

src/app/components/calendar-year/calendar-year.spec.ts

@@ -1,5 +1,5 @@
 import { ComponentFixture, TestBed } from '@angular/core/testing';
-
+import { provideZonelessChangeDetection } from '@angular/core';
 import { CalendarYear } from './calendar-year';
 
 describe('CalendarYear', () => {
@@ -8,7 +8,8 @@ describe('CalendarYear', () => {
 
   beforeEach(async () => {
     await TestBed.configureTestingModule({
-      imports: [CalendarYear]
+      imports: [CalendarYear],
+      providers: [provideZonelessChangeDetection()]
     })
     .compileComponents();
 

src/app/components/calendar-year/calendar-year.ts

@@ -46,6 +46,7 @@ export class CalendarYear {
 					this.selectedDates.optimizeVacations(
 						{ ...vacationData },
 						this.calendarSettingsService,
+						this.calendarService,
 					);
 				}
 				this.isLoading.set(false);