Update Video mapping

src/invidious/helpers.cr

@@ -96,21 +96,9 @@ class Video
     language:           String?,
     author:             String,
     ucid:               String,
-    allowed_regions: {
-      type:    Array(String),
-      nilable: true,
-      default: [] of String,
-    },
-    is_family_friendly: {
-      type:    Bool,
-      nilable: true,
-      default: nil,
-    },
-    genre: {
-      type:    String,
-      nilable: true,
-      default: nil,
-    },
+    allowed_regions:    Array(String),
+    is_family_friendly: Bool,
+    genre:              String,
   })
 end