Disable NTP animation when toggling Privacy Feed (#3460)

Task/Issue URL: https://app.asana.com/0/0/1208626779582462/f

Description:
This is to avoid weird implicit animation of the NTP layout.

DuckDuckGo/HomePage/View/HomePageView.swift

@@ -88,6 +88,7 @@ extension HomePage.Views {
                                         scrollOffsetReader
                                     }
                                 }
+                                .animation(.none, value: recentlyVisitedModel.showRecentlyVisited)
                                 .coordinateSpace(name: Const.scrollViewCoordinateSpaceName)
                                 .onPreferenceChange(ScrollOffsetPreferenceKey.self, perform: hideSuggestionWindowIfScrolled)
                                 .if(addressBarModel.shouldShowAddressBar) { view in