【fix】【BOTA】展开BOTA前提下，编辑PDF删除内容后，退出，未刷新缩略图

PDF Office/PDF Master/Class/PDFWindowController/ViewController/KMMainViewController.swift

@@ -2065,6 +2065,10 @@ import Cocoa
         km_synchronized(self) {
             self.model.isPDFDocumentEdited = true
             
+            if type == .editText || type == .editImage {
+                self.leftSideViewController.updateThumbnail(at: self.listView.currentPageIndex)
+            }
+            
             if let _document = self.myDocument {
                 KMTools.setDocumentEditedState(document: _document)
             }