Clean up and update test imports and providers

Replaces deprecated HttpClientModule with provideHttpClient and provideHttpClientTesting in breadcrumb tests, removes unused imports and declarations from card, error handler, and validation utils test files for improved clarity and maintainability.

npm/ng-packs/packages/theme-shared/src/lib/tests/breadcrumb.component.spec.ts

@@ -6,7 +6,8 @@ import {
   RoutesService,
   LocalizationService,
 } from '@abp/ng.core';
-import { HttpClient, HttpClientModule } from '@angular/common/http';
+import { provideHttpClient } from '@angular/common/http';
+import { provideHttpClientTesting } from '@angular/common/http/testing';
 import { RouterModule } from '@angular/router';
 import { createRoutingFactory, SpectatorRouting } from '@ngneat/spectator/jest';
 import { BreadcrumbComponent, BreadcrumbItemsComponent } from '../components';
@@ -33,8 +34,9 @@ describe('BreadcrumbComponent', () => {
     component: RouterOutletComponent,
     stubsEnabled: false,
     detectChanges: false,
-    mocks: [HttpClient],
     providers: [
+      provideHttpClient(),
+      provideHttpClientTesting(),
       { 
         provide: CORE_OPTIONS, 
         useValue: {
@@ -61,7 +63,6 @@ describe('BreadcrumbComponent', () => {
     declarations: [],
     imports: [
       RouterModule,
-      HttpClientModule,
       LocalizationPipe,
       BreadcrumbComponent,
       BreadcrumbItemsComponent,

npm/ng-packs/packages/theme-shared/src/lib/tests/card.component.spec.ts

@@ -4,7 +4,6 @@ import {
   CardBodyComponent,
   CardFooterComponent,
   CardHeaderComponent,
-  CardHeaderDirective,
   CardTitleDirective,
   CardImgTopDirective,
   CardSubtitleDirective,

npm/ng-packs/packages/theme-shared/src/lib/tests/error.handler.spec.ts

@@ -2,13 +2,12 @@ import { HttpErrorReporterService } from '@abp/ng.core';
 import { CoreTestingModule } from '@abp/ng.core/testing';
 import { APP_BASE_HREF } from '@angular/common';
 import { HttpErrorResponse, HttpHeaders } from '@angular/common/http';
-import { Component, NgModule } from '@angular/core';
+import { NgModule } from '@angular/core';
 import { createServiceFactory, SpectatorService } from '@ngneat/spectator/jest';
 import { OAuthService } from 'angular-oauth2-oidc';
 import { of, Subject } from 'rxjs';
 import { HttpErrorWrapperComponent } from '../components/http-error-wrapper/http-error-wrapper.component';
 import { ErrorHandler } from '../handlers';
-import { DEFAULT_ERROR_LOCALIZATIONS, DEFAULT_ERROR_MESSAGES } from '../constants/default-errors';
 import { ConfirmationService } from '../services';
 import { CUSTOM_ERROR_HANDLERS, HTTP_ERROR_CONFIG } from '../tokens/http-error.token';
 import { CustomHttpErrorHandlerService } from '../models';

npm/ng-packs/packages/theme-shared/src/lib/tests/validation-utils.spec.ts

@@ -2,12 +2,10 @@ import { AbpApplicationConfigurationService, ConfigStateService } from '@abp/ng.
 import { CoreTestingModule } from '@abp/ng.core/testing';
 import { HttpClient } from '@angular/common/http';
 import { Component, Injector } from '@angular/core';
-import { Validators } from '@angular/forms';
 import { createComponentFactory, Spectator } from '@ngneat/spectator/jest';
 import { OAuthService } from 'angular-oauth2-oidc';
 import { of } from 'rxjs';
 import { getPasswordValidators, validatePassword } from '../utils';
-import { PasswordRule } from '../models/validation';
 
 @Component({ template: '', selector: 'abp-dummy' })
 class DummyComponent {}