Use alternative url for homepage thumbnails

src/views/index.ecr

@@ -5,11 +5,10 @@
 <% top_videos.each_slice(4) do |slice| %>
 <div class="pure-g">
 <% slice.each do |video| %>
-    <% player_response = JSON.parse(video.info["player_response"]) %>
     <div class="pure-u-1 pure-u-md-1-4">
         <div style="overflow-wrap:break-word; word-wrap:break-word;" class="h-box">
             <a style="width:100%;" href="/watch?v=<%= video.id %>">
-                <img style="width:100%;" src="<%= player_response["videoDetails"]["thumbnail"]["thumbnails"][0]["url"] %>"/>
+                <img style="width:100%;" src="https://i1.ytimg.com/vi/<%= video.id %>/mqdefault.jpg"/>
                 <p><%= video.title %></p>
             </a>
             <p>