feat: add element.updated (#4070)

src/data/restore.ts

@@ -26,6 +26,7 @@ import {
 import { getDefaultAppState } from "../appState";
 import { LinearElementEditor } from "../element/linearElementEditor";
 import { bumpVersion } from "../element/mutateElement";
+import { getUpdatedTimestamp } from "../utils";
 
 type RestoredAppState = Omit<
   AppState,
@@ -101,6 +102,7 @@ const restoreElementWithProperties = <
       element.strokeSharpness ??
       (isLinearElementType(element.type) ? "round" : "sharp"),
     boundElementIds: element.boundElementIds ?? [],
+    updated: element.updated ?? getUpdatedTimestamp(),
   };
 
   return {