test: inject instead of deprecated TestBed get

Additionally refactor tests and ts-ignore annotations.

src/app/modules/menu/context/context-menu.component.spec.ts

@@ -12,7 +12,7 @@
  * You should have received a copy of the GNU General Public License along with
  * this program. If not, see <https://www.gnu.org/licenses/>.
  */
-/* eslint-disable @typescript-eslint/no-non-null-assertion,@typescript-eslint/ban-ts-comment */
+/* eslint-disable @typescript-eslint/no-non-null-assertion, @typescript-eslint/ban-ts-comment */
 import {
   APP_BASE_HREF,
   CommonModule,
@@ -103,7 +103,7 @@ describe('ContextMenuComponent', async () => {
     fixture.detectChanges();
     const sort: HTMLElement =
       fixture.debugElement.nativeElement.querySelector('.context-sort');
-    // @ts-ignore
+    // @ts-expect-error not relevant for this case
     const sortItem: HTMLElement = sort.querySelectorAll('.sort-item')[1];
     sortItem!.click();
     expect(instance.sortOption.value).toEqual('name');
@@ -148,7 +148,7 @@ describe('ContextMenuComponent', async () => {
 
       expect(filterGroup).toBeDefined();
 
-      // @ts-ignore
+      // @ts-expect-error it is defined
       const filterItems = filterGroup.querySelectorAll('.filter-item-label');
 
       if (filterItems.length !== facet.buckets.length) {

src/app/modules/menu/context/context-menu.service.spec.ts

@@ -11,7 +11,7 @@ describe('ContextMenuService', () => {
     TestBed.configureTestingModule({
       providers: [ContextMenuService],
     });
-    service = TestBed.get(ContextMenuService);
+    service = TestBed.inject(ContextMenuService);
   });
 
   it('should be created', () => {