Return to scroll position on reload

[jeremyruston]

@HistoryBuff

the scrolling is less responsive than without the scrollable widget. I’m assuming that this is because each time I scroll, it has to store the scroll position in the fields of the binding tiddler.

That’s right. I plan to improve things by debouncing the updates so that they are not generated so frequently. As long as the update to the binding tiddler isn’t triggering an expensive refresh the performance should be reasonable once that’s done.