Unionise highlighting of results for fields with (native) subfields

[metagrover]

Issue

Enhancement

Description

Currently, we only highlight results of dataFields which are being rendered in the view ignoring their sub-fields. For certain search use-cases where there won't be a full-word match, we only receive such highlights in the sub-fields (.search field w.r.t. appbaseio standard mappings). For example:

For results, where we don't have anything highlighted, we are receiving the marked highlights in .search subfield. So, it's best to unionise the highlight-results of dataFields with their respective sub-fields before rendering.

Reactivesearch version: 2.6.2

[siddharthlatest]

One option here is to transparently pass the highlight key returned from the response in the onAllData and onData callbacks (will be renderAllData and renderData in v3.0.0).