Enable scroll position restoration in app routing

frontend/src/app/app.module.ts

@@ -45,7 +45,9 @@ const routes: Routes = [
   ],
   imports: [
     BrowserModule,
-    RouterModule.forRoot(routes),
+    RouterModule.forRoot(routes, {
+      scrollPositionRestoration: 'enabled',
+    }),
     NgOptimizedImage,
     CopyIpComponent,
   ],