Search results dropdown should only use one line per result

[Hixie]

I've been using the new Search experience in dartdoc for a few days now and I think we can improve it further with some small changes. Because each entry in the drop-down takes four lines and three font styles plus a big box, it's relatively hard to scan the results and there are very few results on the screen at a time.

I think this could be improved by using only one line per result with fewer words overall, more like a typical autocomplete UI, for example more like what GitHub does when you type @ (but with the class and member names, and maybe library names, rather than people's identities, of course!).

[srawlins]

I agree. Great suggestion.