Make sure SyncScrollOffset is updated after JumpToChangeBlock()

Author: goran-w

src/Views/TextDiffView.axaml.cs

@@ -1589,6 +1589,8 @@ static TextDiffView()
                     foreach (var p in v.Editor.Presenter.GetVisualDescendants().OfType<ThemedTextDiffPresenter>())
                     {
                         p.JumpToChangeBlock((int)e.NewValue);
+                        if (p is SingleSideTextDiffPresenter ssp)
+                            ssp.ForceSyncScrollOffset();
                     }
                 }
             });