Add handling for specific genre channels

src/invidious/videos.cr

@@ -604,10 +604,15 @@ def fetch_video(id, proxies)
 
   genre = html.xpath_node(%q(//meta[@itemprop="genre"])).not_nil!["content"]
   genre_url = html.xpath_node(%(//a[text()="#{genre}"])).try &.["href"]
-  if genre == "Movies"
-    genre_url ||= "/channel/UClgRkhTL3_hImCAmdLfDE4g"
-  end
+  case genre
+  when "Movies"
+    genre_url = "/channel/UClgRkhTL3_hImCAmdLfDE4g"
+  when "Education"
+    # Education channel is linked but does not exist
+    # genre_url = "/channel/UC3yA8nDwraeOfnYfBWun83g"
     genre_url = ""
+  end
+  genre_url ||= ""
 
   license = html.xpath_node(%q(//h4[contains(text(),"License")]/parent::*/ul/li))
   if license