Ensure suggestions is an array and close autocomplete on search

nabeel- commented 6 years ago

Ensure suggestions is an array and close autocomplete on search

When a search yields no suggestions the backend will produce a malformed response in the form {"": []} (given that the structure should be [{...result...}, ...]), which causes the front-end to choke. This cleans that up to ensure we always put an array into the redux store. Ideally this would be fixed on the back-end but ensuring an array on the front-end could also be a worth-while addition.

Also closes the autocomplete when a search is initiated as a small quality-of-life improvement to the search experience.