chore(deps): update Angular core/cli/animations/common/compiler/forms/platform-browser/router/service-worker 21.1.5 -> 22.0.8

Ran via ng update @angular/core@22 @angular/cli@22 (schematics applied
automatically). TypeScript bumped 5.9.3 -> 6.0.3 as a required peer.

Migrations applied:
- provideHttpClient() calls gained withXhr() where HttpXhrBackend is used
  (app.config.ts)
- optional-chaining expressions wrapped in $safeNavigationMigration()
  (language-selector.component.html)
- nullishCoalescingNotNullable/optionalChainNotNullable extended
  diagnostics disabled in tsconfig.app.json/tsconfig.spec.json (matches
  the new stricter default the migration works around)

Next: ng update @angular/cdk@22, then verify tsc/build/tests.

package.json

@@ -21,31 +21,32 @@
   },
   "private": true,
   "dependencies": {
-    "@angular/animations": "21.1.5",
+    "@angular/animations": "22.0.8",
     "@angular/cdk": "21.1.5",
-    "@angular/common": "21.1.5",
-    "@angular/compiler": "21.1.5",
-    "@angular/core": "21.1.5",
-    "@angular/forms": "21.1.5",
-    "@angular/platform-browser": "21.1.5",
-    "@angular/router": "21.1.5",
-    "@angular/service-worker": "21.1.5",
+    "@angular/common": "22.0.8",
+    "@angular/compiler": "22.0.8",
+    "@angular/core": "22.0.8",
+    "@angular/forms": "22.0.8",
+    "@angular/platform-browser": "22.0.8",
+    "@angular/router": "22.0.8",
+    "@angular/service-worker": "22.0.8",
     "@lucide/angular": "^1.25.0",
     "rxjs": "~7.8.0",
     "tslib": "^2.8.0",
     "zone.js": "~0.16.0"
   },
   "devDependencies": {
-    "@angular/build": "21.1.5",
-    "@angular/cli": "21.1.5",
-    "@angular/compiler-cli": "21.1.5",
+    "@angular/build": "22.0.8",
+    "@angular/cli": "22.0.8",
+    "@angular/compiler-cli": "22.0.8",
     "@types/jasmine": "~5.1.0",
     "barry-cache": "^0.9.3",
+    "istanbul-lib-instrument": "^6.0.3",
     "jasmine-core": "~5.5.0",
     "karma": "~6.4.0",
     "karma-chrome-launcher": "~3.2.0",
     "karma-jasmine": "~5.1.0",
     "karma-jasmine-html-reporter": "~2.1.0",
-    "typescript": "~5.9.3"
+    "typescript": "~6.0.3"
   }
-}
+}

src/app/app.config.ts

@@ -1,6 +1,6 @@
 import { ApplicationConfig, provideBrowserGlobalErrorListeners, provideZoneChangeDetection, isDevMode } from '@angular/core';
 import { provideRouter, withInMemoryScrolling } from '@angular/router';
-import { provideHttpClient, withInterceptors } from '@angular/common/http';
+import { provideHttpClient, withInterceptors, withXhr } from '@angular/common/http';
 
 import { routes } from './app.routes';
 import { cacheInterceptor } from './interceptors/cache.interceptor';
@@ -22,7 +22,7 @@ export const appConfig: ApplicationConfig = {
       routes,
       withInMemoryScrolling({ scrollPositionRestoration: 'top' })
     ),
-    provideHttpClient(
+    provideHttpClient(withXhr(), 
       withInterceptors([mockDataInterceptor, apiBaseUrlInterceptor, apiHeadersInterceptor, adminAuthHeadersInterceptor, cacheInterceptor])
     ),
     { provide: Ed25519VerificationService, useClass: NoopEd25519VerificationService },

src/app/components/language-selector/language-selector.component.html

@@ -1,7 +1,7 @@
 <div class="language-selector" role="listbox">
   <button class="language-button" (click)="toggleDropdown()" (keydown)="onKeyDown($event)" aria-haspopup="listbox" [attr.aria-expanded]="dropdownOpen">
-    <img [src]="languageService.getCurrentLanguage()?.flagSvg" 
-         [alt]="languageService.getCurrentLanguage()?.name" 
+    <img [src]="$safeNavigationMigration(languageService.getCurrentLanguage()?.flagSvg)" 
+         [alt]="$safeNavigationMigration(languageService.getCurrentLanguage()?.name)" 
          class="language-flag">
     <span class="language-code">{{ languageService.getCurrentLanguage()?.code?.toUpperCase() }}</span>
     <app-icon name="chevronDown" [size]="14" [class.rotated]="dropdownOpen" class="dropdown-arrow" />

tsconfig.app.json

@@ -12,5 +12,13 @@
   ],
   "exclude": [
     "src/**/*.spec.ts"
-  ]
+  ],
+  "angularCompilerOptions": {
+    "extendedDiagnostics": {
+      "checks": {
+        "nullishCoalescingNotNullable": "suppress",
+        "optionalChainNotNullable": "suppress"
+      }
+    }
+  }
 }

tsconfig.spec.json

@@ -11,5 +11,13 @@
   "include": [
     "src/**/*.spec.ts",
     "src/**/*.d.ts"
-  ]
+  ],
+  "angularCompilerOptions": {
+    "extendedDiagnostics": {
+      "checks": {
+        "nullishCoalescingNotNullable": "suppress",
+        "optionalChainNotNullable": "suppress"
+      }
+    }
+  }
 }