Fix singular row count label

[Nihar2006]

Fixes T419564.

Before:
Resultset (1 rows)

After:
Resultset (1 row)

This updates the row count label to use the singular form when exactly one row is returned.

[Nihar2006]

This PR has been updated to remove unrelated line-ending changes that were introduced when rebuilding the compiled template on Windows (CRLF vs. LF). The diff now contains only the intended fix for singular/plural row-count labeling.
The change was also tested locally using docker-compose, confirming correct label rendering for queries returning 0, 1, and multiple rows. Please let me know if any further changes are required.

[framawiki]

This change looks good to me.
Looks like I lost merge rights since Gerrit>Github transition, so if some power user could merge this change, that would be great :)

[david-caro]

This change looks good to me. Looks like I lost merge rights since Gerrit>Github transition, so if some power user could merge this change, that would be great :)

You have write access to the repo, maybe the issue is that the tests are not passing?

[framawiki]

You have write access to the repo, maybe the issue is that the tests are not passing?

That's probably a good point. The CI appears to be lost around the checkout of the forked repository, but I'm not sure how to fix that.