Change how to scrape a page of a video

Facebook goes to a 'not found' page when you try to visit a video
with invalid video id on URL. So for scraping reason, we need to
distinguish this 'not found' page from actual video pages.

The previous method was also filtering some actual videos (because
Facebook changed their HTML format) so, this is a try to filter
only 'not found' pages.

Author: kangkyu

lib/funky/html/page.rb

@@ -4,10 +4,11 @@ module HTML
     class Page
       def get(video_id:)
         body = response_for(video_id).body
-        if body.include? '<meta name="description"'
-          body
-        else
+
+        if body.include? '<title id="pageTitle">Facebook</title>'
           raise ContentNotFound, 'Please double check the ID and try again.'
+        else
+          body
         end
       end