feat: optimize performance with lazy loading and change detection improvements

chore: update build configurations and remove unused styles
fix: enhance user experience with loading indicators and improved asset management

src/app/layout/default/app.layout.component.ts

@@ -4,7 +4,6 @@ import { BreadcrumbComponent } from '@/shared/components';
 import { CommonModule } from '@angular/common';
 import { Component, computed, ContentChild, inject, Renderer2, TemplateRef } from '@angular/core';
 import { NavigationEnd, Router, RouterModule } from '@angular/router';
-import { ProgressSpinner } from 'primeng/progressspinner';
 import { filter, Subscription } from 'rxjs';
 import { LayoutService } from '../service/layout.service';
 import { AppFooter } from './app.footer.component';
@@ -14,15 +13,7 @@ import { AppTopbar } from './app.topbar.component';
 @Component({
   selector: 'app-layout',
   standalone: true,
-  imports: [
-    CommonModule,
-    AppTopbar,
-    AppSidebar,
-    RouterModule,
-    AppFooter,
-    BreadcrumbComponent,
-    ProgressSpinner,
-  ],
+  imports: [CommonModule, AppTopbar, AppSidebar, RouterModule, AppFooter, BreadcrumbComponent],
   templateUrl: './app.layout.component.html',
 })
 export class AppLayout {