Use SearchResult component (#14867)

* Use SearchResult component

Update the backend to return much richer match data

[Fixes #14832]

* Increase the memoization cache for search scoring by common subseq (#14894)

* Increase the memoization cache for search scoring by common subseq

Also limit the size of input it can get

(Hopefully) [Fixes #14852]

* Don't group search results by type (#14898)

Respect the sorting done by the backend

* Format metrics and segments in search results; DRY up the code

* Add normalizedCollection(); show "Our Analytics" collection in search results

* Use SearchResult for typeahead results too