Fix typo

src/app/shared/service/sroll-top.service.ts

@@ -6,7 +6,7 @@ import { isPlatformBrowser } from '@angular/common';
 export class ScrollTopService {
 
     constructor(
-        @Inject(PLATFORM_ID) private platformId: Object, private router: Router) {
+        @Inject(PLATFORM_ID) private platformId: object, private router: Router) {
         }
 
         setScrollTop() {