Use isLatest db value in object search query

[TimCsaky]

We need to update our search objects query to take advantage of the isLatest boolean we added to the db schema (previously we used createdAt date desc to work out latest).

This change fixes a bug where soft deleted files are showing up in bcbox.

Description

Types of changes

Bug fix (non-breaking change which fixes an issue)

Checklist

• [x] I have read the CONTRIBUTING doc
• [x] I have checked that unit tests pass locally with my changes
• [ ] I have added tests that prove my fix is effective or that my feature works
• [ ] I have added necessary documentation (if appropriate)

Further comments

[codeclimate[bot]]

Code Climate has analyzed commit 862f0975 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 0.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 64.7% (0.0% change).

View more on Code Climate.

[github-actions[bot]]

Coverage Report

Totals
Statements:	58.04% ( 2649 / 4564 )
Methods:	47.98% ( 297 / 619 )
Lines:	64.74% ( 1592 / 2459 )
Branches:	51.14% ( 760 / 1486 )