parse the relationship between ul > li (html list elements) from the clipboard into outlier hierarchy

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### Search first

- [X] I searched and no similar issues were found

### What Happened?

When pasting a sturcture for list elements, the relationship of the parent-children is incorrect.

### Reproduce the Bug

1. Paste the following structure into a [codepen](https://codepen.io/) page (or any HTML renderer)
```

• level1-1


• level1-2
  
  
  
  • level2-1
  
  
  • level2-2
  
  
  
  
  • level3-1
  
  
  
  
  • level2-3
  
  
  
  


• level1-3

```
2. Copy the result HTML
3. Paste into Logseq

### Expected Behavior

Expected:
```
- level1-1
- level1-2
- level2-1
- level2-2
- level3-1
- level2-3
- level1-3
```

Current results:
```
- level1-1
- level1-2
- level2-1
- level2-2
- level3-1
- level2-3
- level1-3
```

### Screenshots

_No response_

### Desktop or Mobile Platform Information

Logseq version 0.9.8 on windows 10 build 19044.2965.

### Additional Context

_No response_

### Are you willing to submit a PR? If you know how to fix the bug.

- [ ] I'm willing to submit a PR (Thank you!)

Reproduce the issue in Logseq by copying the provided nested HTML list and pasting it into the editor, then trace the clipboard HTML handling that builds the outliner hierarchy. The work is done when nested ul > li relationships produce the expected indentation, including the level3-1 item under level2-2.

Written by the indexing model from the issue text.