Symbol pane sorts private and public properties separately but no visible difference

### What Happened?

The properties category items appear out of order. On closer inspection the private properties are sorted ahead of public properties but there is no visible difference between the items

### Steps to Reproduce

- Open a file of a class with public and private properties
- View the properties category in the symbol pane

### Expected Behavior

The private and public properties should be distinguished by headers or icons or not sorted separately.

### OS Version

8.x (Circe)

### Session Type

Secure Session (Wayland)

### Software Version

Latest release (I have run all updates)

### Log Output

_No response_

### Hardware Info

_No response_

首先在符号窗格中打开一个同时包含 public 和 private 属性的类文件，并重现排序问题。跟踪属性类别如何对这些项进行分组和渲染，然后通过标题或图标明确显示可见性区别，或者停止分别对各组进行排序。在报告的 8.x 环境中，于符号窗格验证结果。

由索引模型根据 Issue 内容生成。