AppChrome: Fixes kiosk mode toggling (#58240)

public/app/core/components/AppChrome/AppChromeService.test.tsx

@@ -0,0 +1,10 @@
+import { AppChromeService } from './AppChromeService';
+
+describe('AppChromeService', () => {
+  it('onToggleKioskMode should set chromeless to true when searchbar is hidden', () => {
+    const chromeService = new AppChromeService();
+    chromeService.onToggleSearchBar();
+    chromeService.onToggleKioskMode();
+    expect(chromeService.state.getValue().chromeless).toBe(true);
+  });
+});

public/app/core/components/AppChrome/AppChromeService.tsx

@@ -57,11 +57,11 @@ export class AppChromeService {
       this.routeChangeHandled = true;
     }
 
+    Object.assign(newState, update);
+
     // KioskMode overrides chromeless state
     newState.chromeless = newState.kioskMode === KioskMode.Full || this.currentRoute?.chromeless;
 
-    Object.assign(newState, update);
-
     if (!isShallowEqual(current, newState)) {
       this.state.next(newState);
     }