Clean up search and fix bugs and specs

Removed unused form from _aside

Removed @aggregate_kinds and @aggregate_service_areas from controller and set them directly in _options

Fixed bugs with name and id attributes in _filter: the name attribute of radio buttons wasn't properly set to the API parameter (location, org_name, service_area), and the hidden field that is actually the one whose value gets submitted had the same id as the selected radio button.