popular/missed searches: fix blank views.

Fix missing call to `.each`.

test/functional/explore/posts_controller_test.rb

@@ -41,6 +41,7 @@ module Explore
           mock_post_search_rankings(Date.today, [["1girl", 100], ["original", 50]])
           get searches_explore_posts_path
           assert_response :success
+          assert_select "tbody tr", count: 2
         end
       end
 
@@ -49,6 +50,7 @@ module Explore
           mock_missed_search_rankings([["1girl", 100], ["original", 50]])
           get missed_searches_explore_posts_path
           assert_response :success
+          assert_select "tbody tr", count: 2
         end
       end
     end

test/test_helpers/reportbooru_helper.rb

@@ -13,7 +13,8 @@ module ReportbooruHelper
   def mock_missed_search_rankings(date = Date.today, rankings)
     Danbooru.config.stubs(:reportbooru_server).returns("http://localhost:1234")
     url = "http://localhost:1234/missed_searches"
-    mock_request(url, body: rankings.to_json)
+    data = rankings.map { _1.join(" ") }.join("\n")
+    mock_request(url, body: data)
   end
 
   def mock_post_view_rankings(date = Date.today, rankings)