[AAE-15126] App.config.service should log an error when the app.config.json is invalid (#8624)

lib/core/src/lib/app-config/app-config.service.ts

@@ -197,6 +197,8 @@ export class AppConfigService {
                         this.onDataLoaded(data);
                     },
                     () => {
+                        // eslint-disable-next-line no-console
+                        console.error('app.config.json contains validation errors');
                         resolve(this.config);
                     }
                 );