Fixes search results bugs

Fixes #136 and #150.
- Hides keyboard after performing search by blurring input field when
form is submitted.
- Absolutely positions search results area so that bottom is not cut
off.
- Moves search results status inside search results div so there isn’t
a difference in positioning between the search results status message
when no search is applied vs when there is.
Merge pull request #151 from codeforamerica/search-results-fixes

Fixes search results bugs