FIX: Search was not being initialized properly.

`results` is now an array `[]` not an object, and `suggestionResults`
was not being initialized properly.

app/assets/javascripts/discourse/app/widgets/search-menu.js

@@ -18,13 +18,14 @@ const searchData = {};
 
 export function initSearchData() {
   searchData.loading = false;
-  searchData.results = {};
+  searchData.results = [];
   searchData.noResults = false;
   searchData.term = undefined;
   searchData.typeFilter = null;
   searchData.invalidTerm = false;
   searchData.topicId = null;
   searchData.afterAutocomplete = false;
+  searchData.suggestionResults = [];
 }
 
 initSearchData();