calculate coords based on container viewport position (#1955)

* feat: calculate coords based on parent left and top so it renders correctly in host App

* fix text

* move offsets to state & fix bugs

* fix text jumping

* account for zoom in textWysiwyg & undo incorrect offsetting

Co-authored-by: dwelle <luzar.david@gmail.com>

src/data/json.ts

@@ -42,11 +42,11 @@ export const saveAsJSON = async (
   );
 };
 
-export const loadFromJSON = async () => {
+export const loadFromJSON = async (appState: AppState) => {
   const blob = await fileOpen({
     description: "Excalidraw files",
     extensions: ["json", "excalidraw"],
     mimeTypes: ["application/json"],
   });
-  return loadFromBlob(blob);
+  return loadFromBlob(blob, appState);
 };