修复点击侧边导航项叶节点的箭头处无法触发槽函数的问题 (#325)

qfluentwidgets/components/navigation/navigation_widget.py

@@ -211,7 +211,7 @@ class NavigationTreeItem(NavigationPushButton):
     def mouseReleaseEvent(self, e):
         super().mouseReleaseEvent(e)
         clickArrow = QRectF(self.width()-30, 8, 20, 20).contains(e.pos())
-        self.itemClicked.emit(True, clickArrow)
+        self.itemClicked.emit(True, clickArrow and not self.parent().isLeaf())
         self.update()
 
     def _canDrawIndicator(self):