Aliases shown in All Pages

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### Search first

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

### What Happened?

It should only show pages.

### Reproduce the Bug

1. Create a page, e.g. "Test Page"
2. Add aliases, e,g.: `alias:: Test Alias, Test Alias 2, Test Alias 3`
3. Now the aliases are shown in All pages. Also notices how they are shown to have 1 backlinks, while the page has 0.
4. Now link to the page and aliases, e.g.:

```
- [[Test Page]]
- [[Test Alias]]
- [[Test Alias 2]]
- [[Test Alias 3]]
- [[Test Alias 3]]
- [[Test Alias 3]]
```

5. Now "Test Alias 3" has 4 backlinks while "Test Page" has 1. This way of counting is not logical and makes it impossible to see which topic really is important in the graph. The main page should add up all backlinks for the page and any backlink! This seem to work in DB version.

### Expected Behavior

All pages should only show pages, nothing else.

### Screenshots

After Step 3.:

After Step 4.:

### Desktop or Mobile Platform Information

NixOS 25.11.10134.26ef669cffa9
Logseq Desktop (AppImage) 1.0.0 (Current Revision: [680b371](https://github.com/logseq/logseq/commit/680b371))

### 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!)

Start in the All pages view and reproduce the issue with a page containing aliases, then compare its displayed entries and backlink counts with the DB version mentioned in the report. Trace the All pages and backlink behavior until the relevant entry point is identified; done means only pages appear and the main page reflects backlinks from the page and its aliases.

Written by the indexing model from the issue text.