make opts optional and use 100% zoom when inserting to canvas

src/components/MermaidToExcalidraw.tsx

@@ -1,5 +1,5 @@
 import { useState, useRef, useEffect } from "react";
-import { AppState, BinaryFiles } from "../types";
+import { AppState, BinaryFiles, NormalizedZoomValue } from "../types";
 import { updateActiveTool } from "../utils";
 import { useApp, useExcalidrawSetAppState } from "./App";
 import { Button } from "./Button";
@@ -140,10 +140,17 @@ const MermaidToExcalidraw = ({
           mermaidToExcalidrawLib.current.graphToExcalidraw(mermaidGraphData);
 
         data.current = {
-          elements: convertToExcalidrawElements(elements, appState, {
+          elements: convertToExcalidrawElements(
+            elements,
+            {
+              ...appState,
+              zoom: { ...appState.zoom, value: 1 as NormalizedZoomValue },
+            },
+            {
               regenerateIds: true,
               transformViewportToSceneCoords: true,
-          }),
+            },
+          ),
           files,
         };
         const parent = canvasNode.parentElement!;

src/data/transform.ts

@@ -392,8 +392,8 @@ class ElementStore {
 
 export const convertToExcalidrawElements = (
   elements: ExcalidrawElementSkeleton[] | null,
-  appState: AppState,
-  { regenerateIds = false, transformViewportToSceneCoords = false },
+  appState?: AppState,
+  opts?: { regenerateIds: boolean; transformViewportToSceneCoords: boolean },
 ) => {
   if (!elements) {
     return [];
@@ -407,12 +407,12 @@ export const convertToExcalidrawElements = (
   for (const element of elements) {
     let excalidrawElement: ExcalidrawElement;
     const originalId = element.id;
-    if (regenerateIds) {
+    if (opts?.regenerateIds) {
       Object.assign(element, { id: nanoid() });
     }
 
     // transform viewport coords to scene coordinates
-    if (transformViewportToSceneCoords) {
+    if (opts?.transformViewportToSceneCoords && appState) {
       const { x, y } = viewportCoordsToSceneCoords(
         {
           clientX: element.x,