【fix】 【注释】便签注释内容较多时，预览建议优化

PDF Office/PDF Master/Class/PDFWindowController/PDFListView/AppKitCategories/CPDFListHoverAnnotationViewController.swift

@@ -29,6 +29,9 @@ class CPDFListHoverAnnotationViewController: NSViewController {
         self.view.layer?.backgroundColor = NSColor(red: 0, green: 0, blue: 0, alpha: 0.8).cgColor
 
         self.contentLabel.stringValue = self.annotation.toolTipsString()
+        self.contentLabel.maximumNumberOfLines = 16
+//        self.contentLabel.lineBreakMode = .byTruncatingTail
+        self.contentLabel?.cell?.truncatesLastVisibleLine = true
     }