[Bug] Searching bookmarks after deleting a folder returns no results

[seabornlee]

Describe the bug

By investigating issue #5671 , I found that the crash was fixed, but there is a new issue.

How to Reproduce

1. Go to 'Bookmarks'
2. Add folder 'A'
3. Go to folder 'A'
4. Add folder 'B'
5. Delete folder 'B'
6. Search Bookmarks
7. No results at all

https://github.com/user-attachments/assets/a19763fa-8c6a-44ad-86ad-97659bf2f60c

Expected behavior

Should see bookmarks and folder 'A'

Environment

- DDG App Version: 5.231.1
- Device: NIO Phone - N2301
- OS: Android

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[seabornlee]

Another approach to reproduce:

https://github.com/user-attachments/assets/71c39197-896c-4a5b-9750-a3d55455e435

[joshliebe]

@seabornlee As stated in https://github.com/duckduckgo/Android/pull/6147#issuecomment-2974723457, please submit a smaller targeted PR with the fix.