test: inject instead of deprecated TestBed get

Additionally refactor tests and ts-ignore annotations.

src/app/modules/map/map.provider.spec.ts

@@ -44,8 +44,6 @@ describe('MapProvider', () => {
       ],
     });
 
-    // eslint-disable-next-line @typescript-eslint/ban-ts-comment
-    // @ts-ignore
     configProvider.getValue.and.returnValue(sampleDefaultPolygon);
     provider = TestBed.inject(MapProvider);
   });