Add shorts identification by thumbnails

pug/settings.pug

@@ -66,6 +66,16 @@ block content
           ]
         })
 
+        +select({
+          id: "show_shorts",
+          label: "Display YouTube Shorts",
+          description: "When off, shorts will be hidden from the subscriptions page.\nShorts are detected by thumbnail patterns with a 10% false negative rate and a 0% false positive rate.",
+          options: [
+            {value: "0", text: "Hide shorts"},
+            {value: "1", text: "Show shorts"}
+          ]
+        })
+
         +select({
           id: "quality",
           label: "Preferred qualities",