处理Safari 不支持requestIdleCallback方法

src/component/Canvas/CanvasEditor/managers/ThumbnailManager.js

@@ -37,7 +37,6 @@ export class ThumbnailManager {
 
     // 延迟执行，避免阻塞UI
     fabricObjects.length > 0 &&
-      requestIdleCallback(() => {
         setTimeout(async () => {
           const base64 = await this._generateLayerThumbnailNow(fabricObjects, layer);
           // this.layerThumbnails.set(layerId, base64);
@@ -55,7 +54,6 @@ export class ThumbnailManager {
             console.error("生成图层缩略图时出错:", error);
           }
         });
-      });
   }
 
   /**
@@ -65,7 +63,7 @@ export class ThumbnailManager {
   generateAllLayerThumbnails(layers) {
     if (!layers || !Array.isArray(layers)) return;
 
-    requestIdleCallback(() => {
+    setTimeout(() => {
       setTimeout(() => {
         layers.forEach((layer) => {
           if (layer && layer.id) {