sync intermediate text updates (#1174)

* sync intermediate text updates

* fix initial render text position

* batch updates

* tweak onChange subscription

src/element/index.ts

@@ -37,7 +37,7 @@ export function getSyncableElements(elements: readonly ExcalidrawElement[]) {
   // There are places in Excalidraw where synthetic invisibly small elements are added and removed.
   // It's probably best to keep those local otherwise there might be a race condition that
   // gets the app into an invalid state. I've never seen it happen but I'm worried about it :)
-  return elements.filter((el) => !isInvisiblySmallElement(el));
+  return elements.filter((el) => el.isDeleted || !isInvisiblySmallElement(el));
 }
 
 export function getElementMap(elements: readonly ExcalidrawElement[]) {