A super huge improvement in search.

- Added a cleanup button within input form.
- Optimized TopBar responsive effect(for search layout).
- Redesign the search results layout.

search.json

@@ -1,6 +1,7 @@
 ---
 layout: compress
 ---
+
 [
   {% for post in site.posts %}
   {
@@ -8,7 +9,8 @@ layout: compress
     "url": "{{ site.baseurl }}{{ post.url }}",
     "categories": "{{ post.categories | join: ', '}}",
     "tags": "{{ post.tags | join: ', ' }}",
-    "date": "{{ post.date }}"
+    "date": "{{ post.date }}",
+    "snippet": "{{ post.content | strip_html | strip_newlines | remove_chars | escape | truncate: 300 }}"
   }{% unless forloop.last %},{% endunless %}
   {% endfor %}
 ]