feat(layout): enhance topbar with customizable templates and full-page support

- Updated app.layout.component.html to include start, center, and end templates for the topbar.
- Modified app.layout.component.ts to manage new template references and added isFullPage getter.
- Refactored app.topbar.component.html to utilize new templates and improved layout structure.
- Enhanced app.topbar.component.ts to accept new input properties for templates.
- Updated layout.service.ts to manage full-page state and new topbar slots.
- Added new payment bridge services for POS functionality.
- Introduced greater validator for form validation.
- Improved dialog component to support mobile drawer and responsive design.
- Updated styles for better mobile support and layout adjustments.
- Added new main menu sidebar for POS with dynamic content.

src/app/shared/components/formFooterActions/form-footer-actions.component.ts

@@ -10,6 +10,7 @@ export class FormFooterActionsComponent {
   @Input() submitLabel = 'تایید';
   @Input() cancelLabel = 'لغو';
   @Input() loading = false;
+  @Input() disabled = false;
   @Output() onSubmit = new EventEmitter<void>();
   @Output() onCancel = new EventEmitter<void>();