Fix post type badge

app/helpers/post_types_helper.rb

@@ -5,7 +5,8 @@ module PostTypesHelper
       'Article' => 'fas fa-newspaper'
     }[type]
     tag.span class: 'badge is-tag is-filled is-muted' do
-      "#{tag.i(class: icon_class)} #{tag.span(type)}"
+      tag.i(class: icon_class) + " " +
+      tag.span(type)
     end
   end
 end