Separate results from the same file into multiple groups

[kantord]

While grouping results from the same file together is useful and should be kept, in some cases this can result in subpar quality.

For example, a very large file with many results might keep the result screen very busy and draw attention from another file that contains a good result.

Probably results with a few lines in the same file should always be kept together, and also results that have very similar relevance scores should also be kept together.

However, when there are more than a few lines in a result, and their relevance scores are not very similar, then probably they should be grouped separately.