[Javadoc]Invalid range and text content for file/class property in the snippetTag

```
/**
 * Example using snippet highlight tag.
 * {@snippet file="config.properties"}
 */
```

<img width="1850" height="1076" alt="Image" src="https://github.com/user-attachments/assets/6cf6200e-f1b6-4a78-b06b-cbcfb033782d" />
JavadocTextElement node's range and text is incorrect