fix: 修复清空画布时，历史记录没有清空问题

Author: dx123456

packages/core/plugin/HistoryPlugin.ts

@@ -21,8 +21,8 @@ type extendCanvas = {
 
 class HistoryPlugin implements IPluginTempl {
   static pluginName = 'HistoryPlugin';
-  static apis = ['undo', 'redo'];
-  static events = ['historyUpdate'];
+  static apis = ['undo', 'redo', 'historyUpdate'];
+  static events = [];
   hotkeys: string[] = ['ctrl+z', 'ctrl+shift+z', '⌘+z', '⌘+shift+z'];
   constructor(public canvas: fabric.Canvas & extendCanvas, public editor: IEditor) {
     fabric.Canvas.prototype._historyNext = () => {

src/components/save.vue

@@ -99,6 +99,8 @@ const saveWith = debounce(function (type) {
  */
 const clear = () => {
   canvasEditor.clear();
+  canvasEditor.canvas.clearHistory(false);
+  canvasEditor.historyUpdate();
 };
 
 const beforeClear = () => {