fix: add default function to obj literals to avoid unexpected errors

lib/parser/index.js

@@ -109,7 +109,7 @@ class Parser {
           ['Community playlists']: () => YTMusicDataItems.PlaylistResultItem.parse(section.contents),
           ['Artists']: () => YTMusicDataItems.ArtistResultItem.parse(section.contents),
           ['Albums']: () => YTMusicDataItems.AlbumResultItem.parse(section.contents)
-        })[section_title]();
+        }[section_title] || (() => {}))();
 
         processed_data.results[section_title.replace(/ /g, '_').toLowerCase()] = section_items;
       }

lib/parser/ytmusic/search/TopResultItem.js

@@ -21,7 +21,7 @@ class TopResultItem {
         artist: () => ArtistResultItem.parseItem(item),
         album: () => AlbumResultItem.parseItem(item),
         single: () => AlbumResultItem.parseItem(item)
-      }[type])();
+      }[type] || (() => {}))();
 
       parsed_item && (parsed_item.type = type);