Importing an empty page with one tag from EDN does take 11 seconds

@megayu is already working on this.

Since Jul 14, 2026.

### Search first

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

### What Happened?

I think that's way too long. A user can't understand why it's taking so long. It should be instant.

Demo: https://youtu.be/2jwlVf3FZtI?si=P3fdsN7cI0IIy74f&t=1

### Reproduce the Bug

1. Import from EDN

```
{:pages-and-blocks
[{:page
{:build/tags #{:user.class/Firma-HacVBUZC}, :block/title "Apfel"},
:blocks [{:block/title ""} {:block/title ""}]}],
:classes {:user.class/Firma-HacVBUZC {:block/title "Firma"}},
:logseq.db.sqlite.export/export-type :page}
```

### Expected Behavior

The task should be completed instandly.

There should be an option to go to the new page. Maybe move me there, or better show notification "Page X sucessfully imported. **Go to page**"

WHEN imports or any other task in UI take longer than half a second, show progress bar. The user thinks the program hangs when nothing happens!

### Screenshots

_No response_

### Files

_No response_

### Browser, Desktop or Mobile Platform Information

NixOS 26.05.4193.a50de1b7d8a5
Logseq-linux-x86_64-2.0.1-alpha+nightly.20260710

### 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!)