Fix incorrect scoring of search results (#23984)

* Correct `score-and-result` to count the weight of the text score when there is no text match

* Replace nil-punning of scores with explicit checking for zero scores at each step

* Update scoring functions that can return nil to return zero instead

* Address archived search with no search string

* Update e2e test

* Update e2e test with new ordering of results

* Fix dataset search with blank query string