fix(kit): TuiDataListGroupWrapperComponent is not assignable to the…

… same property in base type (#8461)

projects/kit/components/data-list-wrapper/data-list-group-wrapper.component.ts

@@ -16,11 +16,10 @@ import {TuiDataListWrapperComponent} from './data-list-wrapper.component';
     changeDetection: ChangeDetectionStrategy.OnPush,
     providers: [tuiAsDataListAccessor(TuiDataListGroupWrapperComponent)],
 })
-export class TuiDataListGroupWrapperComponent<T> extends TuiDataListWrapperComponent<T> {
-    @Input()
-    // @ts-ignore
-    public override items: readonly T[][] | null = [];
-
+export class TuiDataListGroupWrapperComponent<T> extends TuiDataListWrapperComponent<
+    T,
+    T[]
+> {
     @Input()
     public labels: readonly string[] = [];
 }

projects/kit/components/data-list-wrapper/data-list-wrapper.component.ts

@@ -36,14 +36,14 @@ import {PolymorpheusOutlet} from '@taiga-ui/polymorpheus';
     changeDetection: ChangeDetectionStrategy.OnPush,
     providers: [tuiAsDataListAccessor(TuiDataListWrapperComponent)],
 })
-export class TuiDataListWrapperComponent<T> {
+export class TuiDataListWrapperComponent<T, K = T> {
     private readonly itemsHandlers: TuiItemsHandlers<T> = inject(TUI_ITEMS_HANDLERS);
 
     @ViewChildren(forwardRef(() => TuiOption))
     protected readonly optionsQuery: QueryList<TuiOption<T>> = EMPTY_QUERY;
 
     @Input()
-    public items: readonly T[] | null = [];
+    public items: readonly K[] | null = [];
 
     @Input()
     public disabledItemHandler: TuiItemsHandlers<T>['disabledItemHandler'] =
@@ -75,4 +75,8 @@ export class TuiDataListWrapperComponent<T> {
             .map(({value}) => value)
             .filter(tuiIsPresent);
     }
+
+    protected $cast(items: readonly K[]): readonly T[] {
+        return items as unknown as readonly T[];
+    }
 }

projects/kit/components/data-list-wrapper/data-list-wrapper.template.html

@@ -4,7 +4,7 @@
     [size]="size"
 >
     <button
-        *ngFor="let item of items"
+        *ngFor="let item of $cast(items)"
         #elementRef="elementRef"
         automation-id="tui-data-list-wrapper__option"
         tuiElement